What does the word know mean

знать, узнавать, уметь, иметь представление, испытывать, пережить, быть знакомым

глагол

- знать, иметь понятие или представление; быть в курсе дела

- знать, обладать знаниями, разбираться, быть сведущим (в чём-л., в какой-л. области)

- уметь, знать (как сделать что-л.); обладать умением

to know how to play chess [to read, to swim, to behave] — уметь играть в шахматы [читать, плавать, вести себя]
he would do it if he knew how — он бы сделал это, если бы умел
all one knows — всё, что умеешь /можешь/

- осознавать, понимать

to know one’s faults — знать свои собственные недостатки
the summer was gone before I knew — не успел я оглянуться, как лето прошло
he doesn’t know his own mind — он сам не знает, чего (он) хочет
we know a soldier by the clothes he wears — мы узнаём военнослужащего по одежде

- испытать, пережить

to know poverty [sorrow] — знать нужду [горе]
to have known better days — знавать лучшие дни
he has known trouble — ему пришлось немало пережить

- быть знакомым (с кем-л.); знать (кого-л.); познакомиться (с кем-л.)

to know smb. intimately [officially] — быть в близких [официальных] отношениях с кем-л.
to know smb. personally — быть лично знакомым с кем-л.
to know smb. from a photograph — знать кого-л. по фотографии
to get to know smb. better — ближе познакомиться с кем-л.
they are among the people I know — я с ними знаком
to be in surroundings one knows — быть в знакомой обстановке
to make oneself known to smb. — представиться кому-л.

- обыкн. pass быть известным

he is known to the police — полиции он известен, он в полиции на учёте
to be known under the name of Smith — быть известным под фамилией Смит
the drug is commercially known as … — это лекарство продаётся под названием …

- обыкн. pass пользоваться известностью

to become known — становиться известным; приобретать известность
he is known as a successful lawyer — он пользуется репутацией преуспевающего юриста
known to the world, internationally known — известный всему миру, пользующийся мировой известностью

- узнавать, опознавать

to know smb. by his voice [by his walk] — узнать кого-л. по голосу [по походке]
to know smb. at a distance — узнать кого-л. на расстоянии
I might not know him again — я могу его не узнать

- отличать, различать

to know one tune from another — отличать одну мелодию от другой
to know a friend from a foe [good from evil] — отличать друга от врага [добро от зла]
to know a good thing when one sees it — понимать, что хорошо и что плохо, разбираться в чём-л.

- библ. познать (женщину)

существительное

- знание

to be in the know — разг. быть в курсе дела

Мои примеры

Словосочетания

to know a thing like a book — знать что-л. как свои пять пальцев  
to know which side one’s bread is buttered — быть себе на уме  
to come to know smb. better — лучше узнать кого-л.  
not to know for certain — не знать наверняка  
to know (learn) to one’s own cost — (у)знать по собственному горькому опыту  
to know smth. from A to Z — знать что-л. в совершенстве  
not to know A from B — быть невежественным  
to know from previous experience — знать по опыту  
to know farther — глубже узнать  
to know / get / find / have / take the length of smb.’s foot — узнать чью-л. слабость, раскусить человека  

Примеры с переводом

I wouldn’t know!

Откуда мне знать!

I know this voice!

Я узнаю этот голос! / Мне знаком этот голос!

I knew him at once.

Я его тотчас узнал.

I know Latin.

Я знаю латынь /латинский язык/.

I know I won’t get the job.

Я знаю, что не получу эту работу.

You know nothing of this business.

Вы ничего не смыслите в этом бизнесе.

I don’t know where to go.

Я не знаю, куда идти.

ещё 23 примера свернуть

Примеры, ожидающие перевода

I’ve never known (=have never experienced) this to happen in all the time I’ve worked here.

I don’t really know what I’m doing (=I do not have enough skill and experience to deal with something) when it comes to cars.

Для того чтобы добавить вариант перевода, кликните по иконке , напротив примера.

Возможные однокоренные слова

knowing  — знание, понимание, осознание, знакомство, знающий, понимающий, проницательный
knowable  — познаваемый

Формы слова

verb
I/you/we/they: know
he/she/it: knows
ing ф. (present participle): knowing
2-я ф. (past tense): knew
3-я ф. (past participle): known

Verb



He knows a lot about the history of the town.



Do you know the answer?



I don’t know her name.



Do you know what time it is?



I don’t know the words to that song.



They knew a good deal about the problem.



She knows the rules of the game.



If you want the answer, ask someone who knows.



I don’t know much about art, but I know what I like.



She knows that many people will not believe her.

See More

Recent Examples on the Web



The city is known for offering cheap medical services.


Ben Brasch, Washington Post, 13 Apr. 2023





Video of the arrests of the two women drew condemnation to the small town of Wetumpka, a riverside community north of Montgomery best known for its legal hotel-casino.


Howard Koplowitz | Hkoplowitz@al.com, al, 13 Apr. 2023





Tupperware, known for its plastic containers and sales parties, has been attempting to transform itself after years of declining sales.


Wire Reports, oregonlive, 13 Apr. 2023





The attention to detail McNally is known for in his restaurants is prevalent here, too.


Kate Betts, ELLE Decor, 13 Apr. 2023





The Lyrid meteor shower, known for its fast and bright meteors, will begin on Saturday, April 15 and is expected to peak the nights of April 21-22.


Michael Salerno, The Arizona Republic, 12 Apr. 2023





And though they’re known for attracting jet-setting party crowds, not all of them are teeming with people.


Julia Buckley, Travel + Leisure, 12 Apr. 2023





Arnold Schwarzenegger is known for his career as both an actor and a politician.


Li Cohen, CBS News, 12 Apr. 2023





Taiwan was previously better known internationally as Formosa.


Reuters, NBC News, 12 Apr. 2023




Horse racing terms to keep you in the know for this year’s race Post time: 9:50 a.m. EST Saturday at Meydan Racecourse in Dubai, United Arab Emirates.


Jason Frakes, The Courier-Journal, 24 Mar. 2023





The Brooklyn shop, referred to as simply MGC by those in the know, was founded in 1977 by Holocaust survivor Martin Greenfield but is now run by his two sons, Jay and Tod.


Rachel Cormack, Robb Report, 15 Mar. 2023





In the few short months since its launch, the popular foundation has become a must-have among beauty lovers in the know, thanks to its wide shade range, and lightweight, flexible formula that looks nearly identical to skin.


Sarah Maberry, Harper’s BAZAAR, 13 Mar. 2023





At some of the most exclusive eateries around the world, a once-humble ingredient is stepping into the spotlight, becoming a flex for diners in the know, and boasting a price tag commensurate with its newfound status.


William Li, Town & Country, 7 Mar. 2023





Ashley Park, Sherry Cola, Sabrina Wu and Stephanie Hsu star in a film that’s described by those in the know as raunchy, hilarious and heartfelt.


Diane Garrett, Variety, 6 Mar. 2023





To always be in the know, sign up for our newsletter Tim Newcomb is a journalist based in the Pacific Northwest.


Tim Newcomb, Popular Mechanics, 2 Mar. 2023





The publication also talked to people in the know, interviewing members of the clergy for a guide to funeral homes and EMTs for a report on emergency-room care.


Harrison Smith, Washington Post, 26 Feb. 2023





Easy wins, or bad policy? Tomas Lares, founder of the anti-trafficking group United Abolitionists, is concerned that political opportunism is driving the rush to file bills without talking to those in the know.


Spencer Norris, Sun Sentinel, 26 Feb. 2023



See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word ‘know.’ Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

We don’t know because we don’t want to know ‘which passes for visionary in America circa 2009. ❋ Unknown (2009)

For the person offering the service though, I think it is key to know in your mind – to * know* – that you are the best at what you do. ❋ Unknown (2008)

“So… you know that I know what you know… what is it you want?” ❋ Moon, Elizabeth (2007)

With most endeavors which require knowledge and experience, a group will always “know” more than any one single individual, and many groups together will always know more than any one single Team. ❋ Unknown (2007)

It is explained by reason of the fact that the predicate appellates its form (for ˜You know Socrates approaching™ requires that the predicate ˜know Socrates approaching™ be true of you and so is false), whereas ˜Socrates approaching you know™ requires only that ˜Him you know™ be true, referring to Socrates, and it is true. ❋ Read, Stephen (2006)

Before I go I’d like to wish anyone reading this a great holiday season, and let you know how much I’ve enjoyed getting to *know* so many of you this year. ❋ Kalyn Denny (2006)

Thus in ˜You know Socrates approaching™, the predicate ˜know Socrates approaching™ appellates its concept, the ratio ˜Socrates approaching™, so the proposition is false unless you are aware who it is; whereas in ❋ Read, Stephen (2006)

I do know that those who say there will be no more warming are flying in the face of what we *know*. ❋ Unknown (2005)

How, then, could one possibly know, even in the fallibilist sense of ˜know™, that one isn’t a BIV? ❋ Steup, Matthias (2005)

I am in love, have been for some time now, and i know from my balls to my bones that it is love without a fraction of a doubht. * i am not sure on her feelings towards me, for i haven’t really let her know* But if true love were possible, wouldn’t that mean the person i am in love with would have to be in love with me? ❋ Lethalpickle (2004)

In blocking, you know something and _know_ that you know it — it’s on the tip of your tongue — but you just can’t quite find it because the memory is temporarily inaccessible. ❋ Unknown (2004)

There are some distinct French vowel sounds I *know* I have difficulty differentiating and I know the French have no trouble at all. ❋ Unknown (2004)

I don’t know whether I can be a good manager or not, but I *know*, I can be a good leader. ❋ Chirayu (2004)

See, I’m told by a transexual I know online that sudden injections of hormones can make you go all OTT emotionally, but I get the feeling most people writing mpreg don’t *know* that and are just over-compemsating. ❋ Unknown (2004)

I understand the attraction to d*land and the people you meet on here … you know them, but you don’t * know* them, and you don’t have to deal with them day to day after they read the most embarassing details of your life. ❋ Fulfilled (2001)

I did not know — nor * did anyone in this office know* that call screening was now available. ❋ Unknown (1990)

«Oh, Kobuk, darling, I know — I _know_ —» the girl’s voice broke. ❋ Barrett Willoughby (N/A)

God: «[Abe], you knew your maidwoman as well as Sarah? And she gave birth to that bastard of yours, [Ishmael]?»
[Abraham] (boasting his double scoring): «Yep, God. My sons are Isaac and Ishmael.» ❋ Terrell Mateo (2003)

«As [we know], there are known knowns.There are things we know we know. We also know there are known [unknowns]. That is to say,we know there are some things we do not know. But there are also unknown unknowns — the ones [we don’t] know we don’t know ❋ The Ender (2003)

[I know] [your girlfriend]. ❋ Mike The Ekim (2006)

1) I know what you’re [talking] about.
2) Right know im a little confused.
3) i haev know [idea] [wut] ur talking about lol ❋ Ddt (2004)

❋ Anonymous (2002)

alex: [band meeting], my house!
tom: ok call me
miller: band meeting, your house.
[gena]: what? [why dont we] ever keep any of our stuff? our band sucks ❋ Russian555 (2005)

Can [she go]? I, [er], know.
[P.S]. Don’t accept know for an answer. ❋ Hercolena Oliver (2009)

[Chris] [started] in today about common-era [anthropology]…wow what a know it not! ❋ Sandspit (2010)

Yeah, [J.J.’s] Not Knowing.
(He’s [the only one] who has [no idea] what we’re talking about.) ❋ OdontEvnGetMeStartd (2019)

«People in the know are aware of a nuclear explosion if even the slightest [jolt] was made upon [the renegade] carrier.»
-part of the storyline for Blast [Corps] ❋ Dave (2004)


Asked by: Emilio Franecki DVM

Score: 4.5/5
(55 votes)

Knowledge is a familiarity, awareness, or understanding of someone or something, such as facts, skills, or objects. By most accounts, knowledge can be acquired in many different ways and from many sources, including but not limited to perception, reason, memory, testimony, scientific inquiry, education, and practice.

What is the full meaning of know?

1a(1) : to perceive directly : have direct cognition of. (2) : to have understanding of importance of knowing oneself. (3) : to recognize the nature of : discern. b(1) : to recognize as being the same as something previously known. (2) : to be acquainted or familiar with.

How do you use the word know?

Know sentence example

  1. I know you must be tired, so I will let you rest. …
  2. I know they don’t like me. …
  3. He didn’t know the car was coming. …
  4. I know better than that. …
  5. Do you know that profound thinker? …
  6. Oh, mother, I would like to know everything. …
  7. Jim did not know , but he would not tell the Sawhorse that.

What does it mean to say I know?

What does I know! mean? When used as an exclamation, I know! indicates perfect agreement, empathy, or understanding. The phrase can also communicate frustration, contrition, or an idea.

What does Y know?

—used for «you know» in informal speech and in representations of such speech The following five dishes taste great and take no time, so you can retain your party bragging rights and, y’know, actually relax.—

22 related questions found

Why do people say y know?

He said tag words such as «you know,» «I mean,» and «right» are used to seek confirmation in the listener, or convince them. «Truthful people convey information and seek confirmation from listeners,» he wrote. «Liars try to convince others that what is being said is true.

Is Y know a word?

«You know» (or «y’know») is used as a filler word, when a speaker is thinking, or when a speaker doesn’t want to directly name something.

How do you say I know in different ways?

You can do that by saying:

  1. OK / Alright / Sure.
  2. Got it.
  3. OK, I get it now / That’s clear, thank you.
  4. Fair enough / I see where you’re coming from / I take your point / That makes sense.
  5. Of course / Absolutely.
  6. I appreciate why you think that, but…
  7. I hear what you’re saying, but…
  8. When You Understand Someone’s Feelings:

What can I say instead of I know right?

actually, I’ve always felt that way, too. Granted, these are somewhat more formal than «IKR» or «I know, right». But if you are in a sufficiently informal situation you can probably simply say «IKR» or «I know, right». If you afraid of offending someone, just say «yeah» or «yup».

What is difference between no and know?

The verb know means to be aware, to be informed, to recognize, to understand, or to be acquainted with. The past form of know is knew; the past participle form is known. No (which can function as an adjective, an adverb, or an interjection) means the opposite of yes: not so, not in any degree.

How do you use the word know and no?

Verb:

  1. No is not a verb.
  2. Know is a verb.
  3. No is used as an exclamation, determiner, noun, and adverb.
  4. Know is only used as a verb.
  5. No is used to negate a sentence.
  6. Know means to have knowledge, to be aware or to be acquainted.

Is struggling a sentence?

Struggling sentence example. Natasha knows that he is struggling with terrible pain. Obviously he was still struggling with it. Dean cried, struggling to maintain his precarious position.

How do you know them meaning?

An inquiry as to how someone knows a particular piece of information. A: «I bet that’s what’s wrong with your dryer.» B: «How do you know? You haven’t even looked at it yet!» … A question that expresses one’s annoyance or indignation over something that someone else has said.

What type of word is know?

As detailed above, ‘know’ can be a noun or a verb. Verb usage: He knew something terrible was going to happen. … Verb usage: I know your mother, but I’ve never met your father.

Do you understand is correct sentence?

“Are you understand” is incorrect. “Do you understand?” is the correct sentence.

What to say instead of I understand how you feel?

I’m sorry you’re going through this.

“I’m sorry you’re going through this” lets your loved one know that you understand the situation is difficult. At the same time, it doesn’t sound like you assume you know how they feel. “I’m sorry you’re going through this” is also a great alternative to “I’m sorry for your loss.”

What can I say instead of love you?

Here are five great alternatives to «I love you,» each that deliver a heartfelt and meaningful message.

  • I respect you. You can be madly in love with someone, but the relationship will fall short if one person doesn’t feel respected by the other. …
  • I appreciate you. …
  • I like you. …
  • I treasure you. …
  • I think you’re hot.

Is it OK to say understand?

On the face of it, the statement “I understand” is the perfect expression of empathy. Unlike Charlie Harper (Charlie Sheen’s character in the sitcom), we usually mean it. We are sincere when we say it, so for me to suggest that ‘I understand’ is arrogant may sound insulting. But think of it this way.

How do you say I don’t know in a professional way?

Try one of these instead:

  1. I’m not sure, but I’ll find out and let you know.
  2. I’ll find out.
  3. I’ll look into it and get back to you with what I find.
  4. That’s a good question and I want to get you the right information. Let me get back to you by end-of-day.

Is Y know a contraction?

(nonstandard) Shortened form of you know. Y’know, come to think of it, you’re right.

How do you spell Yaknow?

you ˈknow. 1 used when you are thinking of what to say next: He’s, you know, strange. It’s hard to explain.

What does HDHF mean in texting?

Definition. HDHF. High Definition Hands Free (video recording glasses)

Britannica Dictionary definition of KNOW

not used in progressive tenses

:

to have (information of some kind) in your mind

[+ object]

  • He knows a lot about the history of the town.

  • Do you know the answer?

  • I don’t know her name.

  • Do you know what time it is?

  • I don’t know the words to that song.

  • They knew a good deal about the problem.

  • She knows the rules of the game.

  • He knows everything about horses. = He knows all/everything there is to know about horses.

often + how, why, where, etc.

  • Do you know why she left this suitcase here?

  • Do you know where she went?

  • No one knows (for sure) how long it will take to fix the problem.

  • He knows perfectly/full well how to do it.

[no object]

  • If you want the answer, ask someone who knows.

  • “What is she doing?” “Believe me, you don’t want to know.” [=you would be shocked or upset to learn what she is doing]

often + about

  • He knows (all) about horses.

:

to understand (something)

:

to have a clear and complete idea of (something)

[+ object]

  • I don’t know much about art, but I know what I like.

usually + how, why, where, etc.

  • Scientists don’t yet know why this happens.

  • I don’t know what to do.

  • I don’t know what you want me to do.

  • We had almost no money in those days. I don’t know how we managed.

  • I don’t know how you could be so careless.

  • You know perfectly/full well what I am trying to say.

[no object]

  • “How could she do that?” “How should/would I know?!” [=I don’t know, and you should not expect me to know]

[+ object]

:

to have learned (something, such as a skill or a language)

  • She knows karate/CPR.

  • He knows Spanish.

often + how

  • Do you know how to type?

  • I would go swimming with you, but I don’t know how (to swim). [=I never learned to swim]

:

to be aware of (something)

:

to realize (something)

[+ object]

  • She knows that many people will not believe her.

  • I know (that) this isn’t easy for you, but you have to keep trying.

  • As soon as I turned on the light I knew that something was missing.

  • There was no way for me to know that he was your brother. = How was I to know that he was your brother?

  • It’s wrong and you know it! [=you are aware that it is wrong]

  • “I’m sorry I threw out those bags.” “It’s okay: you couldn’t have known that I needed them.” = “It’s okay: you had no way of knowing that I needed them.” = (Brit) “It’s okay: you weren’t to know that I needed them.”

  • You ought to know by now that she is always late.

  • It’s impossible to know what will happen next. = There’s no way of knowing what will happen next. = There’s no knowing what will happen next.

  • If you’ve never been to Venice, you don’t know what you’re missing. [=you would enjoy going to Venice very much]

  • You know as well as I do that they expect us at 8:00.

  • You don’t know how happy I am to see you. [=I am extremely happy to see you]

  • You’ll never know what this means to me. = You can’t know how much this means to me. [=this means a great deal to me]

[no object]

  • As far as I know, they plan to arrive on Monday. [=I believe that they plan to arrive on Monday, but I am not sure]

  • We’re planning a party for George. As you know, he’ll be leaving the company next month.

often + about or of

  • I knew about the problem. [=I was aware of the problem]

  • Does she know about the meeting?

  • I don’t know of any job openings right now. [=I am not aware of any job openings right now]

  • I know of her as a poet but not as a novelist. [=I am familiar with her poetry but not with her novels]

  • Do you know of a good lawyer? [=can you recommend a good lawyer?]

  • “Does he have relatives nearby?” “Not that I know of.” [=I don’t think he has any relatives nearby]

:

to be certain of (something)

[+ object]

  • Everyone else believes him, but I just know (that) he’s lying.

  • I don’t know if I can trust her. [=I am not sure that I can trust her]

  • It’s hard to know exactly where the candidate stands on this issue.

  • I knew he’d forget.

  • I need to know if they are coming.

  • “She says she’s not coming.” “I knew it!” [=I was sure that she wouldn’t come]

  • I knew it all along. [=I was always sure of it]

[no object]

  • “They’re coming.” “Do you know [=are you certain], or are you just guessing?” = “Do you know for sure/certain, or are you just guessing?”

  • He thinks he got the job but he doesn’t know for sure.

[+ object]

:

to have met and talked to (someone)

:

to be acquainted or familiar with (a person)

  • “Do you know Clara?” “Yes, we’ve met.”

  • “Do you know Clara?” “We’ve met but I wouldn’t say that I really know her.” [=I am not close to her; I don’t know much about her]

  • I’ve known him for years. He’s one of my best friends.

  • Knowing you, you’ll be the first one there. [=because I know you so well, I expect you to be the first one there]

  • She’s the kindest person I know.

  • To know him is to love him. [=the people who know him feel great affection for him]

  • We just bought a house here last month, and we’re still getting to know our neighbors. [=we’re still meeting our neighbors; we’re still becoming acquainted with our neighbors]

:

to have experience with (something)

:

to be acquainted or familiar with (something)

  • She knows the city very well.

  • Do you know her painting/writing/work?

  • Do you know any good restaurants in this area?

  • We’re still getting to know the neighborhood.

  • The building as we know it [=as it exists now] is quite different from how it looked when it was first built.

  • This is the end of the organization as we know it. [=the organization has changed and will never again be the same as it was]

:

to have experienced (something)

  • someone who knows grief well [=someone who has experienced a lot of grief]

usually used as known

  • I’ve known failure and I’ve known success. [=I have failed and I have succeeded]

[+ object]

:

to recognize (someone or something)

:

to identify (someone or something) accurately

  • “How will I know her?” “She’ll be wearing a red sweater.”

  • I would know [=recognize] that voice anywhere.

  • I know his face [=his face is familiar to me] but I don’t remember his name.

  • I feel like I know this house, but I’ve never been here before.

  • I know many of the customers at the café by sight. [=I see them often enough that I recognize them]

:

to recognize the difference between two things

:

to be able to distinguish (one thing) from another

  • know right from wrong

[+ object]

:

to be sure that (someone or something) has a particular quality, character, etc., because of your experiences with that person or thing

usually followed by to + verb

  • I’ve worked with him for many years, and I know him to be an honest man.

  • I know the business to be legitimate.

:

to think of (someone or something) as having a particular quality, character, etc.

+ as

  • His neighbors knew him as a quiet and friendly person, but the people he worked with saw a different side of him.

often used as (be) known as

  • She is known as an expert in the field. [=people consider her an expert]

used to indicate the name that people know or use for someone or something

+ as

  • Her neighbors knew her as Jill Brown, but her real name was Amy Smith.

often used as (be) known as

  • Samuel L. Clemens was better/otherwise known as Mark Twain. [=most people called him Mark Twain]

  • Beethoven’s Third Symphony is widely known as the “Eroica.”

used to say that someone or something has a particular quality, feature, ability, etc., that people know about

+ for

  • Fans of the blues know the city for its live blues clubs.

usually used as (be) known for

  • The restaurant is known for its desserts. [=the restaurant’s desserts are popular, well-known, etc.]

  • She is known for her ability to work quickly. = She is known for working quickly.

  • He‘s known for being late. [=he is often late]

◊ Someone who has been known to be or known to do something has been or done that thing in the past.

  • We’ve known him to work all night to meet a deadline. = He’s been known to work all night to meet a deadline.

  • I’ve never known her to be wrong. [=I do not know of any time when she has been wrong]

  • He’s been known to do this kind of thing before.

before you know it

:

very quickly or soon

  • We’ll be there before you know it.

  • The game was over before I knew it.

better the devil you know than the devil you don’t




see devil

used to say that you agree with what has just been said

  • “It’s freezing in here!” “Don’t I know it.” [=I agree]

used to say that you have little or no knowledge of something

  • For all I know, he left last night. [=I don’t know when he left; it’s possible that he left last night]

  • She may have already accepted another job, for all we know. [=we don’t know what she has done; it’s possible that she has already accepted another job]

God knows

informal

or

goodness knows

or

heaven knows

or

Lord knows

used to stress that something is not known

  • How long will the meeting last? Heaven knows.

  • God (only) knows if the reports are true.

used to make a statement more forceful

  • He finally got a raise. Goodness knows he deserved one. [=he certainly deserved one]

  • She didn’t win, but Lord knows she tried.

have known better days




see 1better

I don’t know

used to say that you do not have the information someone is asking for

  • “What time does the library close?” “I don’t know.”

informal

used to express disagreement, doubt, or uncertainty

  • “I don’t like that guy.” “Oh, I don’t know, he’s not really so bad.”

  • “Which one is your favorite?” “Um, I don’t know, maybe the red one.”

  • She thinks we should go now, but I don’t know. [=I’m not sure] Maybe we should wait.

used to say that you are uncertain about someone or something

  • I don’t know about you [=you may think or feel differently than I do about this], but I’m leaving.

  • “She said she’d be here by 5:00.” “I don’t know about that.” [=I’m not sure that will happen]

  • I don’t know about him —he’s hard to figure out.

if you must know

used when you are answering a question that you do not want to answer because the information is personal, embarrassing, etc.

  • “How much did you pay for your car?” “Well, if you must know, it cost about $20,000.”

  • “Why did you leave that job?” “If you must know, I was fired.”

I’ll have you know




see have

I know (it)

used to express agreement

  • “Hurry up, we’re going to be late.” “I know, but I can’t find my shoe.”

  • “This place is such a mess.” “I know it.” [=I agree]

  • “I can’t believe he lied.” “I know, I know.”

  • “The whole situation is just so stupid.” “I know.”

used to introduce a suggestion

  • “What should we do tonight?” “I know [=I have an idea]—how about a movie?”

I wouldn’t know

used to say that you have not experienced something

  • “That restaurant has the best desserts!” “I wouldn’t know. I’ve never been there.”

know best

or

know what’s best

:

to know or understand better than someone else what should be done

  • I would take the highway myself, but you live here so you know best.

  • I’ll do whatever you say. You know what’s best.

know better

:

to be smart or sensible enough not to do something

  • You walked home alone? Don’t you know better (than that)?

  • She’ll know better than to trust them again. [=she will not trust them again]

  • There’s no excuse for his behavior. He’s old enough to know better.

  • Don’t blame him. He’s just a child and he doesn’t know (any) better. [=he is too young, inexperienced, etc., to be expected to behave properly]

:

to know or understand the truth about something

  • She tried to tell me that it wasn’t her fault, but I know better. [=I know that it really was her fault]

:

to know or understand more than other people

  • You can’t tell him what to do. He always thinks that he knows better.

know different/otherwise

:

to know that something that people think or say is true is not really true

  • She says she has no money but I know otherwise. [=I know that she does have money]

know from (someone or something)

US, informal

:

to know anything about or care at all about (someone or something)

used in negative statements

  • kids who don’t know from sports

know (something) backward and forward

or British

know (something) backwards

or

know (something) inside out

or US

know (something) inside and out

or

know (something) like the back of your hand

:

to know something completely

  • He knew the process backward and forward.

  • She knows the business inside and out.

  • I know this town like the back of my hand.

know (something or someone) for what it/he/she is

:

to understand what something or someone truly is

  • Now I know them for what they are—liars.

  • before scientists knew the disease for what it is—a virus

  • the friends who know me for what I am [=who truly know and understand me]

know (something) when you see it/one

:

to be able to recognize or identify something immediately

  • She knows a bargain when she sees it.

  • I know a liar when I see one.

  • I’m not sure what I want but I’ll know it when I see it.

know what hit you

used in negative statements to say that something you did not expect surprised you very much

  • I didn’t know what hit me—suddenly I just felt so dizzy.

  • The company came out with an entirely new line of products last year, and their competitors never knew what hit them. [=their competitors were not prepared and were completely surprised]

know what it is

or

to know what it’s like

:

to have experience with a situation, activity, or condition

  • He knows what it is to be poor. [=he has been poor]

  • They know what it’s like to have no privacy.

know what you are talking about

◊ If you know what you are talking about, you deserve to be listened to because you have actual knowledge or experience with something and what you are saying is correct.

  • Take her advice. She knows what she’s talking about.

  • “He said the movie is boring.” “Don’t listen to him. He doesn’t know what he’s talking about.” [=he is wrong]

know which side your bread is buttered on




see 1bread

know your own heart/mind

:

to be sure of what you want, like, think, etc.

  • She’s a woman who knows her own mind.

know yourself

:

to understand yourself fully

:

to understand your own emotions, desires, abilities, etc.

  • I was so young then. I really didn’t know myself.

know your way around

◊ If you know your way around a place or thing, you are very familiar with it or are good at using or operating it.

  • He knows his way around Boston.

  • She really knows her way around a sailboat. [=she knows how to sail; she is a very good sailor]

  • They know their way around computers.

let (someone) know

:

to tell something to someone

  • Let me know [=tell me] if you’re going to the party.

  • Please let me know if there’s anything I can do to help. [=I would like to help; please tell me if you need help]

  • He’s not sure what time he’ll arrive—he is going to let us know.

  • She let the staff know her decision. [=she told the staff her decision]

let (something) be known

formal

or

make (something) known

:

to tell people something

  • He let it be known [=he announced] that he intends to run for mayor.

  • She made her decision known to the staff. [=she told the staff her decision]

make yourself known

formal

:

to introduce yourself

:

to cause people to know who you are

  • The candidate made herself known to voters through an aggressive ad campaign.

  • the movie in which the actor first made himself known to the world

might/should have known

used to say that you are not surprised to learn of something

  • I should have known it would be too expensive.

  • “She says she’s going to be late.” “I might have known.”

not know someone from Adam

informal

:

to have never met with someone

:

to not know someone at all

  • Why should she trust me? She doesn’t know me from Adam.

not know the first thing about

:

to have little or no knowledge about (something or someone)

  • I don’t know the first thing about cooking/sports/children.

not know the meaning of (the word)




see meaning

not know your ass from your elbow

(chiefly US)

informal + impolite

or British

not know your arse from your elbow

:

to know nothing

:

to be stupid

  • Don’t take his word for it—he doesn’t know his ass from his elbow.

what do you know

informal

used to express surprise

  • She’s an astronaut? Well, what do you know!

  • “He’s going to law school in the fall.” “Well what do you know about that?” [=I am surprised that he is going to law school]

used to say that someone is wrong about something

  • “She thinks I should take the job.” “What does she know? You should do what you want.”

wouldn’t you know (it)?

informal

used to say that something annoying that has happened is the kind of thing that often happens

  • I was running late and—wouldn’t you know?—I rushed off without my purse.

  • “He’s late again.” “Wouldn’t you know it?!”

used when you are trying to help someone remember something

  • They live on the other side of town. You know—near the golf course.

  • He was in our history class—you know [=you remember]—the tall blond guy in the front row.

used for emphasis

  • You know, we really have to go.

  • It’s cold outside, you know.

  • You know, you really should write a novel.

used when you are not sure of what to say or how to say it

  • Would you like to, you know, go out sometime?

  • We’re planning to go shopping and, you know, just hang out.

you know something/what?

informal

used to emphasize the statement that comes after it

  • You know something? I never trusted her.

  • She lied to me again, but you know what? I really just don’t care any more.

used to get someone’s attention

  • Hey, you know what? I’m hungry.

you know what I mean

informal

used to suggest that the hearer agrees with and understands what has been said or to ask if he or she does or not

  • I grew up there, you know what I mean, so I know what it’s like.

  • He’s kind of strange. Do you know what I mean?

  • He’s kind of strange, if you know what I mean.

sometimes used in the shortened form know what I mean

  • He’s kind of strange—know what I mean?

you know what they say

informal

used to introduce a common saying or a statement that expresses a common belief

  • Keep trying, and you’ll figure it out. You know what they say: if at first you don’t succeed, try, try again.

you never know

used to say that it is impossible to be sure about what will happen

  • You never know—you might win the lottery.

  • You never know who will show up.

  • You never know with her parties: anyone could show up.

Britannica Dictionary definition of KNOW

in the know

:

having knowledge about something

:

having information that most people do not have

  • people who are in the know

  • For those of you not in the know, Jane is the person who founded this organization.

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