Is the word there a common noun

Do you get confused about the difference between a common noun and a proper noun? Would practice help you become a master? 

Read on to learn about the difference between common and proper nouns, how they are used, and when to use them. 

When you feel like you’ve got it, test yourself with a quiz and practice with our high-quality, standards-aligned questions here. 

The Basics of Common and Proper Nouns

The Basics of Common and Proper Nouns

What is a common noun?

A common noun is the general, non-specific term for a person, place, thing, or idea. Usually, common nouns are not capitalized unless they begin a sentence. 

For example, as you work on your homework, think about the things you are using. You might be using a computer, a textbook, or a pencil. All of these are generic items that we encounter on a regular basis and are common nouns

What is a proper noun?

A proper noun is a specific, unique person, place, thing, or idea. Unlike common nouns, proper nouns are almost always capitalized. This is true whether they begin a sentence or not. 

Let’s consider the same example from above, but instead, now we will be more specific about the resources necessary to complete your homework. 

As you work, you may be using a Pearson Algebra 1 textbook, a Google Chromebook, and a Ticonderoga pencil. You are better able to visualize this scenario if proper nouns are provided since they are more specific and unique. 

What is the relationship between common and proper nouns? 

Common and proper nouns are closely related. The most straightforward way of understanding the relationship between common and proper nouns is to think about proper nouns as specific examples of common nouns. 

For example, the word building is a common noun. Examples of buildings include The White House, The Art Institute of Chicago, and Memorial Hall at Harvard University. 

These examples are all proper nouns since they are specific, unique examples of the common noun building. Generally, we can more vividly picture or understand a text when the author uses examples of proper nouns since there is less room for interpretation. 

How do you use common and proper nouns? 

Common and proper nouns can be used in relation to each other or separately. Typically, authors use common nouns when they are describing something broad or ambiguous. 

Proper nouns are used to describe a person, place, thing, or idea that is specific and concrete. Common and proper nouns are often used together in sentences. 

Take the following sentence as an example: The doctor worked long hours at Memorial Hospital to help contain the spread of the common cold. 

In this sentence, we see examples of common nouns, such as doctor, hours, and common cold. Additionally, the sentence has an example of a proper noun– Memorial Hospital. 

If the sentence were not to name the hospital specifically, then it would have remained a common noun (hospital). 

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3 Tips for Understanding Common vs. Proper Nouns

Here are some important tips to help you determine the difference between common and proper nouns:

Tips for understanding common vs. proper nouns

Tip #1: If it’s a noun and it’s capitalized, then it’s probably a proper noun

  • Remember, proper nouns are specific people, places, things, or ideas. Since they represent a concrete or specific person, place, thing, or idea, they are capitalized.
    • For example, book is a generic common noun. 
    • The Scarlet Letter is a specific book and, as a result, is a proper noun. 
  • There is an exception to this rule, however– if a common noun begins a sentence, then it should be capitalized since the first word of every sentence should be capitalized.
    • For example, Lampshades come in many different colors, varieties, and shapes. Even though lampshades is capitalized in this sentence, it is not a specific brand or size of lampshade. 
    • Lampshade is capitalized because it begins the sentence, not because it is a proper noun. 

Tip #2: Make sure it’s a noun. 

  • Do not rely solely on the capitalization of words to determine whether or not the word (or words) in question is a common or proper noun. 
  • There are other examples of words that can be capitalized in a sentence, such as proper adjectives. Before you classify a word as a common or proper noun, ask yourself whether or not the word or phrase in question is a person, place, thing, or idea. If it’s not, then it is not a noun.
    • For example, consider the following sentence: It can be difficult for young people to read complicated, Shakespearian language. At first glance, you may quickly classify Shakespearian as a proper noun. Upon further inspection, however, Shakespearian merely describes the common noun language
    • Therefore, in this instance, Shakespearian is NOT a proper noun even though it is capitalized. Instead, it is a proper adjective. 

Tip #3: When writing, ask yourself, “what message am I trying to communicate?”

  • If you are using common and proper nouns in your own writing, it is important to consider what it is that you want the reader to take away from your writing. 
  • If you are trying to paint a clear, vivid picture for the reader, then it is important to use more proper nouns. 
  • However, if you are attempting to create a more general, vague scene, then using more common nouns is appropriate. 

Remember, if you are trying to figure out whether a word is a common or proper noun, ask yourself if the word in question is a noun and whether or not it’s capitalized. 

If you are writing, ask yourself what message you are trying to communicate before using common or proper nouns. 

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Applying the Basics: Common and Proper Noun Review & Practice

Now that you understand what common and proper nouns are, let’s review how and when to use them, and how to tell them apart! Remember, every proper noun has a common noun counterpart, but not every common noun has a related proper noun. 

The Ultimate List of Common and Proper Nouns

Refer to the graphic below for an extensive list of example common and proper nouns:

Ultimate List of Common and Proper Nouns

This list, obviously, does not include all common and proper nouns and is meant to be used as a guide while identifying other nouns. 

Common Noun Exercises & Review

Now that you know the difference between common and proper nouns, test your ability to accurately identify common nouns. 

Common Noun Exercises & Review

Select the common noun(s) in the sentences below. Remember, these are generic items that we encounter on a regular basis. They are not capitalized unless they begin a sentence.

1. You’ve probably used Google Earth to look at the roof of your own house.

  • In this sentence, roof and house are both common nouns because they are not specific names or titles. They are just general, making them common nouns.

2. In New York City, for example, subways chug along 500 miles of underground track. 

  • In this sentence, example, subways, miles, and track are common nouns because they are not specific names or titles. They are just general, making them common nouns.

3. Some people argue that the government should control what goes on underground, and private companies should not be able to profit from the land beneath your house.

  • In this sentence, people, government, underground, companies, land, and house are all common nouns because they are not specific names or titles. They are just general, making them common nouns.

4. How would you feel about a public road going under your porch?

  • In this sentence, road and porch are common nouns because they are not specific names or titles. They are just general, making them common nouns.

5. The way we answer these questions will help determine how our society grows and changes in the future.  

  • In this sentence, way, questions, society, and future are all common nouns because they are not specific names or titles. They are just general, making them common nouns.

Pro tip: When evaluating whether a noun is common, ask yourself, “Is it general, and is it in lower case?”

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Proper Noun Exercises & Review

Complete the quick exercise below to assess your mastery of proper nouns. 

Proper Noun Exercises & Review

Select the proper noun(s) in the sentences below. Remember, a proper noun is a specific, unique person, place, thing, or idea. Unlike common nouns, proper nouns are almost always capitalized. This is true whether they begin a sentence or not. 

1. In 1890, long before your great-grandparents were born, the U.S. Congress established Yosemite National Park.

In this sentence, U.S Congress and Yosemite National Park are proper nouns because they are specific names or titles. When a noun is specific like this, it is proper and must be capitalized.

2. Before becoming a national park, the Yosemite area was home to the Ahwahneechee and Miwok people for many generations.

In this sentence, Yosemite, Ahwahneechee, and Miwok are proper nouns because they are specific names or titles. When a noun is specific like this, it is proper and must be capitalized.

3. Disney’s “Pocahontas” has a similar happy tone, but the actual life of Pocahontas was more interesting than what we saw on screen.

In this sentence, Disney’s and Pocahontas are proper nouns because they are specific names or titles. When a noun is specific like this, it is proper and must be capitalized.

4. Pocahontas was born around 1595 in modern-day Virginia.

In this sentence, Pocahontas and Virginia are proper nouns because they are specific names or titles. When a noun is specific like this, it is proper and must be capitalized.

5. Heralded as an example of the possibilities in the “New World”, Pocahontas and John Rolfe traveled to England with their son in 1616.

In this sentence, New World, Pocahontas, John Rolfe, and England are all proper nouns because they are specific names or titles. When a noun is specific like this, it is proper and must be capitalized.

Pro tip: When evaluating whether a noun is proper, ask yourself, “Is it specific, and is it capitalized?”

For additional practice, check out Common and Proper Nouns content on Albert.

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Try for Yourself: Common and Proper Nouns Quiz

Common and Proper Nouns Quiz

Feeling confident in your understanding of common and proper nouns? 

Take this short six-question quiz to see what you’ve learned:

1. Is a common noun general or specific?

  • Answer: General
  • Correct Explanation: That’s right! A common noun is the general, non-specific term for a person, place, thing, or idea. Usually, common nouns are not capitalized unless they begin a sentence. 
  • Incorrect Explanation: Sorry, that’s not right! Remember, a common noun is the general, non-specific term for a person, place, thing, or idea. Usually, common nouns are not capitalized unless they begin a sentence. 

2. Is a proper noun general or specific?

  • Answer: Specific
  • Correct Explanation: That’s right! A proper noun is a specific, unique person, place, thing, or idea. Unlike common nouns, proper nouns are almost always capitalized.
  • Incorrect Explanation: Sorry, that’s not right! Remember, a proper noun is a specific, unique person, place, thing, or idea. Unlike common nouns, proper nouns are almost always capitalized.

3. In this sentence, are the underlined words common or proper nouns?

Adolescent brains are constantly rewiring and retraining to prune skills that are not being used to make room for the skills being used often. 

  • Answer: Common
  • Correct Explanation: That’s right! A common noun is the general, non-specific term for a person, place, thing, or idea. Usually, common nouns are not capitalized unless they begin a sentence. Brains, skills, room, and skills are not capitalized in this example.
  • Incorrect Explanation: Sorry, that’s not right! Remember, a common noun is the general, non-specific term for a person, place, thing, or idea. Usually, common nouns are not capitalized unless they begin a sentence. 

4. In this sentence, are the underlined words common or proper nouns?

We enter our REM stage within the first 90 minutes of sleep and repeat this cycle several times throughout the night.

  • Answer: Common
  • Correct Explanation: That’s right! A common noun is the general, non-specific term for a person, place, thing, or idea. Usually, common nouns are not capitalized unless they begin a sentence. In this example, stage, sleep, repeat, times, and night are all general common nouns.
  • Incorrect Explanation: Sorry, that’s not right! Remember, a common noun is the general, non-specific term for a person, place, thing, or idea. Usually, common nouns are not capitalized unless they begin a sentence. 

5. In this sentence, are the underlined words common or proper nouns?

According to the Environmental Protection Agency, plastic litter is of the greatest concern as it has the most widespread and harmful impacts on animal populations.

  • Answer: Proper
  • Correct Explanation: That’s right! A proper noun is a specific, unique person, place, thing, or idea. Unlike common nouns, proper nouns are almost always capitalized. In this example, the Environmental Protection Agency refers to a specific government entity.
  • Incorrect Explanation: Sorry, that’s not right! Remember, a proper noun is a specific, unique person, place, thing, or idea. Unlike common nouns, proper nouns are almost always capitalized.

6. In this sentence, are the underlined words common or proper nouns?

What does NASA’s space program cost each of the 328 million people that currently live in the USA?

  • Answer: Proper
  • Correct Explanation: That’s right! A proper noun is a specific, unique person, place, thing, or idea. Unlike common nouns, proper nouns are almost always capitalized. In this example, NASA and USA refer to a specific organization and nation.
  • Incorrect Explanation: Sorry, that’s not right! Remember, a proper noun is a specific, unique person, place, thing, or idea. Unlike common nouns, proper nouns are almost always capitalized.

For additional practice with common and proper nouns, check out our practice on Albert.io: Common and Proper Nouns.

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Teacher’s Corner

While it’s true that common and proper nouns are a foundational grammar skill, the Common Core English Language Progressive Skills Chart shows that even elementary-level skills “require continued attention in higher grades as they are applied to increasingly sophisticated writing and speaking.” 

For specific standards addressing common and proper nouns, check out the Common Core State Standards site! 

Albert’s common and proper nouns practice can be used for much more than homework! Our assessments can be used as pre-and post-tests to measure student progress. Our pre-made quizzes can be used as bell-ringers, exit tickets, and more! 

In addition to our pre-made assessments, you can also use our assignments feature to create your own quizzes and assessments.

Summary on Common and Proper Nouns

Common nouns are general, non-specific people, places, things, or ideas. 

Proper nouns are specific, concrete people, places, things, and ideas.

In writing, proper nouns generally provide the reader with a more clear, tangible image of what the author describes. 

Common and proper nouns can be used in tandem with one another or separately. Be sure to check out our grammar course for more common and proper noun practice. 

You can also access over 3,400 high-quality questions that address nearly every grammatical concept. 

Need help preparing for your Grammar exam?

Common and Proper Nouns - Grammar Course

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At some point, everyone has the same question: What is a common noun? Here, we’ll take a look at common nouns and provide some common noun examples so you can easily recognize common nouns when you see them. Don’t worry, this will be painless.

What is a Common Noun

noun is a word that names a person, animal, place, thing, or idea. All nouns can be further classified as a proper or common noun. Common nouns are words used to name general items rather than specific ones. Go into your living room. What do you see? A lamp, chair, couch, TV, window, painting, pillow, candle – all of these items are named using common nouns.
Common nouns are everywhere, and you use them all the time, even if you don’t realize it. Wherever you go, you’ll find at least one common noun. Street, closet, bathroom, school, mall, gas station, living room; all of these places are things, and thus they are common nouns.

What is the difference between common and proper nouns?

When we look at the two main types of noun – proper and common – we can differentiate between the two by saying that a common noun is a general way of classifying something, and a proper noun is a specific way of classifying something, So, for example, the word dog is a common noun; but if your dog was called Fido, the word Fido is a proper noun:

  • Dog = common noun
  • Dog’s name (Fido, in this case) = proper noun

More examples of the difference between common and proper nouns:

  • My favorite newspaper (common noun) is the Washington Post (proper noun).
  • Her husband (common noun) is called Frank (proper noun).
  • The award-winning Babe Ruth (proper noun) is the greatest baseball player (common noun) in history.

You may have noticed from the examples that common nouns are not usually capitalized, unless they begin a sentence, whereas proper nouns are normally capitalized. You will also notice that both types of nouns can be more than a single word.

When to use common nouns?

We use common nouns to denote a class of objects or a concept. Consider the word star, as in the stars we see in the sky. Star is used as a common noun, used to denote the class of objects that we view in the night sky, i.e. the luminescent bodies that are spread across the universe, twinkling overhead. The Sun, however, is a proper noun, used to describe the specific star that is at the center of our solar system.

So, anything that is a thing can be generally classified as a common noun:

Professions: lawyer, doctor, teacher, nurse, politician, football player.

People: People in general are named using common nouns, though their official titles in certain cases or given names are proper nouns. When we refer to people using common nouns, we use words like teacher, clerk, police officer, preacher, delivery driver, boyfriend, girlfriend, grandma, cousin, and barista.

For example, when talking about your mother, mother is a common noun.

  • My mother is an actress.
  • Barbara’s mother was the best cook in the city.

But when speaking to your mother, or using mother as her name, mother is used as a proper noun.

  • Mother, can you bake your brownies for the party?”
  • I asked Mother Thompson to join us at dinner.

Objects: car, newspaper, boat, potato chip, shoe, house, table, sword.

However, common nouns can also be more abstract concepts, not things but ideas, emotions and experiences, for example:

Abstract ideas: Culture, love, democracy, time, hatred, peace, war, empathy, anger, laughter.

How to recognize a common noun?

Considering what we have laid out above, it should be pretty easy to recognize a common noun. However, there are some cases when it can be tricky. Consider these sentences:

  • Queen Elizabeth II welcomed President Donald Trump to Buckingham Palace.
  • Donald Trump visited many queens and palaces during his tenure as the president of the United States.

In the first sentence, Queen Elizabeth II, President Trump and Buckingham Palace are proper nouns. They are specific titles for a specific person. In the second sentence, queens, palaces and president are common nouns. Queens and palaces refer to queens and palaces in general, and president refers to the job title and not the specific person.

We mentioned earlier that job titles and general titles fall under the category of common nouns – attorney, actor, comedian, truck driver, sergeant, officer, secretary. However, if these become specific titles referring to a specific person, they sometimes become proper nouns as in  the examples above. Normally, this means the words are capitalized when placed directly in front of that person’s name:

  • Attorney General William Barr was appointed by President

But look how we can use the same words with common nouns:

  • Each US president must appoint an attorney general while in office.

So, you can recognize the common noun by the fact it is not capitalized. But remember that common nouns can also be identified because they are referring to non-specific things or classifications.

The takeaway is this: common nouns are general names and unless they are part of a title like Postmaster General or begin a sentence, they’re not usually capitalized.

common-noun

Common Noun Examples

The following common noun examples will help you to recognize common nouns. In the sentences that follow, common noun examples are italicized. Notice that the examples providing proper nouns name specific versions of the same type of person, animal, place, thing, or idea.

  1. Common Noun: You broke my favorite mug. Proper Noun: I can’t believe you broke my Snoopy mug.
  2. Common Noun: I really want a new pair of jeans. Proper Noun: I really want to buy a new pair of Levis.
  3. Common Noun: I wish I could remember the name of that painter. Proper Noun: I really love art by Van Gogh.
  4. Common Noun: They’re all waiting for us at the restaurant. Proper Noun: Everyone else is at Bill’s Burgers.
  5. Common Noun: I really want to live in the city Proper Noun: Of all the places I’ve lived, Denver was best.
  6. Common Noun: Let’s go to watch a live game at the stadium. Proper Noun: Let’s try to get good seats at Wrigley Field

A noun is a word that refers to a person, place, thing, or idea. We use nouns to refer to general things like friends or pizza and specific things like Leonardo Da Vinci or Canada. We use a lot of different nouns like these to describe everything around us, but all of the nouns we use can be separated into just two different types: common nouns and proper nouns.

Common noun vs. proper noun

The difference between a common noun and a proper noun is what type of thing they are referring to. Common nouns refer to generic things while proper nouns refer to specific things. For example, the noun country is a common noun because it refers to a general, non-specific place. On the other hand, the noun Spain is a proper noun because it refers to a specific country located in Europe (another proper noun). Grammatically, there is one main difference between common and proper nouns: proper nouns are always capitalized whereas common nouns are only capitalized in very specific situations.

Common nouns

As has been said, common nouns refer to generic people, places, and things. You’ll more easily understand what we mean by this with some examples.

Examples of common nouns

Common nouns can refer to people, places, things, and ideas.

  • People: man, woman, child, cop, criminal, butcher, baker, neighbor, friend, enemy, person, stranger, judge, jury, executioner, knights, bishops, kings, queens
  • Places: city, town, country, neighborhoods, islands, beaches, province, state, outside, upstairs, basement, hallway, lobby, rooms, alleys, campsites
  • Things: guitar, drums, apples, oranges, snow, rain, ice, fire, dirt, cars, trucks, knee, elbows, food, water, sky, stars, day, weeks, month, years
  • Ideas, emotions, concepts: happiness, sadness, fear, courage, questions, answers, government, chaos, hunger, confusion, doubt, loneliness, friendship, science

Want a closer look at common nouns? Set your sights on this handy article about them!

Proper nouns

Proper nouns can also refer to people, places, things, and ideas. However, proper nouns refer to more specific people and things.

Examples of proper nouns

As you read each of these proper nouns, you can test your understanding of common nouns. Can you think of a common noun that could also refer to each item referred to by a proper noun?

  • People: Harriet Tubman, King Richard the Lionheart, Miles Davis, Emily Dickinson, Helen of Troy, Superman, Lady Gaga, Captain Crunch
  • Places: New York City, Moscow, Cairo, Portugal, Zimbabwe, Peru, Europe, Asia, Australia, Main Street, Rocky Mountains, Colorado River, Sahara Desert
  • Things: Jupiter, Google, Twitter, Kawasaki Ninja, Playstation 5, Star Wars, Band-aids, Harry Potter and the Chamber of Secrets, Apollo 13, Great Wall of China
  • Ideas and Concepts: Christianity, Islam, Buddhism, Romanticism, Cubism, Industrial Revolution, Dark Ages, Monday, November

Common and Proper Nouns Chart

How do you use common and proper nouns?

Grammatically, the biggest difference between common and proper nouns has to do with capitalization. Proper nouns are always capitalized no matter where they appear in a sentence. One exception to this rule is brand names that use lowercase letters for stylistic reasons: the word iPad is a proper noun even though the first letter is lowercase.

Common nouns, on the other hand, are only capitalized at the beginning of sentences or when used in the title or name of something. For example, the word captain is a common noun and will be lowercase in most sentences. However, it has a capital letter when it is used in a title such as in the name Captain Hook.

Both common and proper nouns are used in most of our sentences. For the most part, it is pretty easy to use them, but you should be careful to always capitalize proper nouns and to only capitalize a common noun when it is appropriate to do so.

Visit the full discussion on proper nouns at our article dedicated to them here.

Tips for differentiating common vs. proper nouns

If you are trying to determine if a word is a common or proper noun, look at the capitalization. Is the noun capitalized in the middle of a sentence? If so, you most likely have a proper noun. Things are trickier if the noun is the first word in the sentence. In that case, ask yourself if the noun is referring to a specific person or thing. If it is, you have a proper noun again. If it isn’t, you are instead looking at a common noun. A good rule of thumb is that all names and titles are proper nouns and will always be capitalized.

Let’s test to see if you have mastered common and proper nouns. Read the following sentences and see if you can figure out if the nouns are common or proper nouns.

  • We went to school yesterday.
  • We learned about the history of France.
  • Jennifer is my older sister.
  • She likes to read novels by Stephen King.

Finally, look at these example sentences and see if you can find the three mistakes involving common and proper nouns. (You can find the answers at the end of this article.)

  1. My favorite American president is theodore roosevelt.
  2. I like all kinds of animals. dogs are the cutest of them all.
  3. When we went to Arizona, I took tons of pictures of the Grand canyon.

No more grammar errors

We’ve got a noun for you: genius! And that’s what you’ll be when you check your writing on Thesaurus.com’s Grammar Coach™. This uncommon tool can definitely spot the difference between your proper and common nouns—and more! Grammar Coach™ uses machine learning technology uniquely designed to catch grammar and spelling errors. Its Synonym Swap will find the best nouns, adjectives, and more to help say what you really mean, guiding you toward clearer, stronger, writing.

Whether you’re writing about a person, place, or thing, perfect grammar has never been easier!

Answers: Theodore Roosevelt, Dogs, Grand Canyon

If you want more of a challenge, head over to our quiz on common vs. proper nouns.

Published on
August 22, 2022
by

Jack Caulfield.

Revised on
February 28, 2023.

A common noun is a noun that describes a type of person, thing, or place or that names a concept. Common nouns are not capitalized unless they appear at the start of a sentence, unlike proper nouns, which are always capitalized.

Common nouns include the names of different jobs, plants and animals, geographical features, ideas, objects, and many other things. They can be concrete nouns or abstract nouns.

Examples: Common nouns in a sentence
The cat climbed the tree in an attempt to catch a bird.

Inequality is a major problem in many societies.

The farmer said his name was Tom.

Table of contents

  1. Common nouns vs. proper nouns
  2. Common nouns that can become proper nouns
  3. Academic concepts are usually common nouns
  4. Other interesting language articles
  5. Frequently asked questions about common nouns

Common nouns vs. proper nouns

Common nouns are defined by contrast with proper nouns. That means that all nouns are either common or proper (though the same noun can be both, in different contexts).

What Is a Proper Noun?

  • Common nouns are general: they usually name classes of things, people, and places rather than specific things, people, and places. They are only capitalized at the start of a sentence, and they can be modified by articles, determiners, and adjectives.
  • Proper nouns are the names of specific individuals, things, places, companies, etc. They are always capitalized and typically not modified by articles, determiners, or adjectives.
Examples: Common and proper nouns
My grandmother’s name is Delilah.

Bill Gates is the co-founder of Microsoft.

World War II was the largest military conflict in history.

Common nouns that can become proper nouns

Common nouns can often become proper (i.e., gain capitalization) when they are used as a name, or as part of a name.

For example, nouns designating family roles, such as “dad,” are common in most cases. But when they’re used directly as a name, without any articles or other determiners, they become proper and gain capitalization.

Examples: Capitalization of family roles
My dad always told me to be more self-confident.

Thanks, Grandma!

In a similar way, nouns that act as titles (e.g., “president,” “archbishop,” “professor”) are capitalized only when they’re used as part of the name of someone holding that title.

Examples: Capitalization of jobs and titles
The current president of the United States is President Biden.

The current archbishop of Canterbury is Archbishop Justin Welby.

The cardinal directions (north, east, south, west) are common nouns in most cases. But they become proper when used with a cultural or political meaning or in the name of a specific location.

Examples: Capitalization of cardinal directions
We’re heading to the west on the highway.

There is no longer a country called East Germany.

Countries categorized as part of the Global South are often still in the process of industrializing.

Note
Common nouns representing important concepts are sometimes capitalized in a literary context to emphasize their importance (e.g., “Nature,” “Truth”).

Conversely, proper nouns sometimes become so general in their meaning that they turn into common nouns. For example, “thermos” was originally a brand name, and therefore capitalized, but is now used more generally to refer to any vacuum flask.

Academic concepts are usually common nouns

One common mistake is to assume that concepts, theories, models, and frameworks are proper nouns, and therefore capitalize them. In fact, they are usually common nouns, although they may include proper nouns (or proper adjectives), which should be capitalized.

Examples: Concepts, theories, models and frameworks
The scientific study of mind and behavior is called psychology. It’s often confused with psychiatry.

The Akaike information criterion evaluates how well a model fits the data it was generated from.

A revolution in scientific thought was initiated by Einstein’s theory of relativity.

In the late 18th century, German idealism responded to ideas from the dominant schools of thought at the time, rationalism and empiricism.

Note
This is a general guideline, not a universal rule—some similar terms are usually capitalized (e.g., “Romanticism,” “Type II error”). If you’re not sure whether to capitalize a specific term, it’s a good idea to check how it’s done in other published texts from your field.

Other interesting language articles

If you want to know more about nouns, pronouns, verbs, and other parts of speech, make sure to check out some of our other language articles with explanations and examples.

Verbs

  • Verb tenses
  • Phrasal verbs
  • Types of verbs
  • Active vs passive voice
  • Subject-verb agreement

Other 

  • Articles
  • Interjections
  • Adjectives
  • Determiners
  • Prepositions

Frequently asked questions about common nouns


What’s the difference between common and proper nouns?

Common nouns are words for types of things, people, and places, such as “dog,” “professor,” and “city.” They are not capitalized and are typically used in combination with articles and other determiners.

Proper nouns are words for specific things, people, and places, such as “Max,” “Dr. Prakash,” and “London.” They are always capitalized and usually aren’t combined with articles and other determiners.


Are seasons capitalized?

The names of seasons (e.g., “spring”) are treated as common nouns in English and therefore not capitalized. People often assume they are proper nouns, but this is an error.

The names of days and months, however, are capitalized since they’re treated as proper nouns in English (e.g., “Wednesday,” “January”).


Are academic concepts capitalized?

No, as a general rule, academic concepts, disciplines, theories, models, etc. are treated as common nouns, not proper nouns, and therefore not capitalized. For example, “five-factor model of personality” or “analytic philosophy.”

However, proper nouns that appear within the name of an academic concept (such as the name of the inventor) are capitalized as usual. For example, “Darwin’s theory of evolution” or “Student’s t table.”

Sources in this article

We strongly encourage students to use sources in their work. You can cite our article (APA Style) or take a deep dive into the articles below.

This Scribbr article

Caulfield, J.
(2023, February 28). What Is a Common Noun? | Definition & Examples. Scribbr.
Retrieved April 12, 2023,
from https://www.scribbr.com/nouns-and-pronouns/common-nouns/

Sources

Aarts, B. (2011). Oxford modern English grammar. Oxford University Press.

Butterfield, J. (Ed.). (2015). Fowler’s dictionary of modern English usage (4th ed.). Oxford University Press.

Show all sources (3)

Garner, B. A. (2016). Garner’s modern English usage (4th ed.). Oxford University Press.

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The EnglishClub Guide to Common Nouns

Nouns can be:

  1. common nouns
  2. proper nouns

There are MILLIONS of websites, and the word «website» is a common noun.

There is only ONE Google, and the word «Google» is a proper noun.

A proper noun is the name of something unique, like me (Joe). You can learn about proper nouns here.

This page is about common nouns, which are all the «normal», general nouns. Simple examples of common nouns are:

  • book, table, car
  • water, milk, oil
  • music, art, literature
  • dog, woman, teacher

Common nouns are everywhere. Look around you now and you will see many common nouns:

  • door, window, tree, sky, cat, truck, road, computer, phone, bottle, ball, luggage, people, hair

Common nouns can be countable (bottle, dollar) or uncountable (milk, money); singular (desk, pencil) or plural (desks, pencils); concrete (piano, bed) or abstract (music, happiness). And they follow all the usual rules of countable/uncountable, singular/plural, concrete/abstract nouns. But there is ONE rule that ALL common nouns need to follow: they don’t start with a capital letter!

Common Nouns Don’t Need Capitals!

A typical mistake that people make with common nouns is to capitalize them. But remember, only a proper noun (like your name or title) needs to start with a capital letter. A person’s «job» (chairman, president, king/queen) may or may not need capitalisation. It depends whether it is the «position» or the «title». There have been many presidents of the USA. Those are positions. But there is only one President Trump. That is his title and name.

If a common noun comes at the beginning of a sentence, then it gets a capital letter—because all sentences start with a capital letter.

If a common noun occurs in a heading (for example above, Common Nouns Don’t Need Capitals!), then it may get a capital letter (depending on editorial style).

If a common noun occurs in the title of a book, movie, song, album etc, then it usually gets a capital letter (War and Peace, The Lord of the Rings, Night of the Living Dead, The Host, The College Dropout).

Of course, if a common noun occurs in a heading that is all in capitals (e.g. newspaper headline), then it is capitalized (MAN BITES DOG, CONTINENT CUT OFF BY FOG).

Here are some example sentences showing right and wrong use of capitalization:

  • Incorrect: In the 20th century, the UK had four Kings and one Queen.
    Correct: In the 20th century, the UK had four kings and one queen.
  • Incorrect: Elizabeth II is Queen of the UK.
    Correct: Elizabeth II is queen of the UK.
  • Incorrect: The reign of queen Elizabeth II began in 1952.
    Correct: The reign of Queen Elizabeth II began in 1952.

And this table of common and proper nouns should show you the difference. Note that the common nouns do not start with a capital, and the proper nouns do start with a capital:

common noun proper noun
car Mazda
writer Shakespeare
country Brazil
continent Asia
restaurant MacDonalds
city London
jeans Levis

Look at these examples of common nouns and some proper nouns in use. The common nouns are in bold:

  • People should go to Mars this century.
  • Have any people been to the Moon?
  • The planet Jupiter has more than seventy-five moons.
  • The car I’d like to buy is a Toyota.
  • Water is essential for life.
  • Without water, we would all die.
  • How many presidents do you know?
  • Have you met Prime Minister May?
  • I need to wash my jeans the day before we leave.
  • I need to wash my Levis on Monday.

See also:

  • Oxford Definition of Common Noun
  • Cambridge Common Nouns

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