Definition Synonyms
Definition of known - Reverso English Dictionary
Adjective
1.
famousrecognized or familiar to many people
- She is a known artist in the city.
2.
certainidentified with certainty
- The known facts were presented in court.
Noun
1.
familiarityfact or situation that is familiar
- The knowns in the problem were clearly stated.
2.
mathematicsTECH. constant or variable with determined valueTECH.
- In the equation, x is a known.
Expressions with known
💡 Discover popular phrases, idioms, collocations, or phrasal verbs. Click any expression to learn more, listen to its pronunciation, or save it to your favorites.
in a way that only the person involved understands
She left the party early for reasons best known to herself.
expresses realization that something was predictable
I might have known he would be late.
unexpected events can occur
Don't worry, stranger things have been known to happen.
rhetorical question expressing surprise or disbelief
Who would have known that he could sing so well?
famous or widely recognized by many people
The Eiffel Tower is a well-known landmark.
used to introduce another name for a person group or thing
The singer also known as the Queen of Pop released a new album.
have a specified name or title
He is known as the fastest runner.
widely recognized or referred to by most people
The plant, commonly known as aloe vera, is very useful.
something or someone familiar or recognized
In the team, she is a known quantity.
share information so others are aware of it
She made it known that she was leaving the company.
to reveal or disclose information
He decided to make known his plans at the meeting..
cause others to notice you are there
He made his presence known by coughing loudly behind the curtain.
express strong recognition of someone in any place or situation
I would have known you anywhere by your voice.
used to indicate a previous name of something
The city, formerly known as Byzantium, is now Istanbul.
indicates a hypothetical situation of past knowledge
Had I known, I might have chosen differently.
announce something publicly
She let it be known that the event was postponed.
not known by many people
The little-known artist gained fame after the exhibition.
cause others to become aware of your presence or identity
She made herself known to the group at the meeting.
used to introduce an official name
The city is officially known as New Amsterdam.
used to introduce an alternative name
The actor, otherwise known as John Doe, arrived at the event.
recognized by most people by a different name
The artist, more commonly known as Banksy, prefers to stay anonymous.
express feeling that something was predictable or expected
I might have known that he would be late!
actually revealing the truth about a situation
Truth be known, I never liked the movie.
reflects on missed opportunities due to lack of knowledge
Had I but known, I would have taken the job offer.
Origin of known
Old English, cnawan (to know)
Terms with known included in their meaning
💡 A powerful way to uncover related words, idioms, and expressions linked by the same idea — and explore meaning beyond exact word matches.
animal
domesticated animals known for loyalty and companionship
well known
known to many people and widely recognized
place name
nation in western Europe, part of the European Union, known for culture
identity label
word by which a person or thing is known
animal
small rodent known for its long tail and sharp teeth
unknown identity
person whose identity is not known
specific noun
used before a noun already mentioned or known
general
refer to nearby objects or people already known in the situation
distance
plural demonstrative pronoun referring to distant people or things already known
country politics
country in East Asia known for its isolation
general
refers to two people or things together already known
information
piece of information known to be true
people
make someone known to another person
metropolis
capital city of Thailand known for tourism and culture
finance
currency used in China, known as Renminbi or Yuan
ornithology
large black bird known for its intelligence
group member
every one in a known group, taken separately
spicy fruit
small pepper known for its spicy heat
hearing
expression used to say a noise is similar to something known
long-standing
friend known for a long time
multiple items
referring to multiple items previously mentioned or known
identity
unspecified person different from the known one
unknown item
unspecified item not yet known
place
city in Canada known as Quebec's capital and a tourist destination
Examples of known in a sentence
The restaurant is known for its delicious pasta. The known risks were discussed before the expedition. She listed all the known ingredients in the recipe. The knowns of the experiment were listed first. In mathematics, knowns are given values. In this formula, y is a known.
The known in the problem simplifies the calculation.
View all translations of known
Click below to see the appropriate translations facing each meaning.
- French:connu, élément connu, ...
- German:bekannt, Vertrautes, ...
- Italian:conosciuto, dati noti, ...
- Spanish:conocido, dato conocido, ...
- Portuguese:conhecido, dados conhecidos, ...
- Chinese:知名的, 已知条件, ...
- Japanese:知られている, 既知の事実, ...
- Arabic:مَعْرُوف, مَعْلُوم, ...
- Hebrew:מוּכָּר, גֹּדֶל יָדוּעַ, ...
- Russian:известный, известное, ...
- Ukrainian:відомий, відомі факти, ...
- Hindi:प्रसिद्ध, मालूम, ...
Definition of know - Reverso English Dictionary
Verb
1.
informationbe informed or have information
- I know about the meeting tomorrow.
2.
familiaritybe familiar with someone or something
- I know this city well.
3.
understandingunderstand through experience or study
- She knows a lot about history.
4.
skillshave the skills to do something
- He knows how to swim.
5.
certaintybe absolutely certain or sure about something
- I know that I left the keys on the table..
6.
awarenessbecome aware or cognizant of something
- I suddenly knew the answer.
7.
feelingexperience something deeply
- He knows the pain of loss.
Noun
1.
understandingknowledge or awareness about something
- He is in the know about the secret plan.
2.
geographyRare UK small hill or moundRare UK
- We picnicked atop a know overlooking the marsh.
Images of know

small hill or mound
Expressions with know
💡 Discover popular phrases, idioms, collocations, or phrasal verbs. Click any expression to learn more, listen to its pronunciation, or save it to your favorites.
have no knowledge or information about something
I know zip about fixing cars.
based on what I currently know or believe
As far as I know, the meeting is still on.
have more knowledge or sense
She should know any better than to lie.
be wise enough not to do something foolish
You should know better than to lie to your parents.
store something fully so you can recite it accurately
She knows the poem by heart and can recite it without pauses.
recognize someone or something by appearance
I know him by sight but not by name..
memorize something completely and effortlessly
She can recite the poem because she knows it by heart.
store something so you can repeat it exactly without looking
She knows the poem by heart and can recite it anytime.
understand someone's emotions from personal experience
I know the feeling of losing a pet.
memorize completely and recall without effort
By opening night, the actors knew them by heart.
understand the circumstances around you
He knows what's going on in his community.
be familiar with the letters of the alphabet
Before first grade, kids should know your ABC's well.
shows something happened suddenly or unexpectedly after something else
I was walking home, and next thing you know, it started raining.
to the best of my knowledge, no
Is he coming today? Not that I know of.
expresses uncertainty about future events or outcomes
You never know what might happen tomorrow.
prefer dealing with known problems than unknown ones
Better the devil you know than the devil you don't know.
very eager to find out something
She was dying to know the results of the test.
to the best of my knowledge
For all I know, he has already left the city.
expresses uncertainty about a situation or fact
For all we know, she might be on vacation.
aware of secret details not shared publicly
Only a few managers were in the know about the merger.
express that accuser shares the same fault as accused
It takes one to know one, so don't call him lazy.
understand something because of a painful or harsh past event
I know from bitter experience that ignoring deadlines only causes stress.
be highly skilled in a particular area
He knows his stuff in graphic design.
have thorough knowledge of something
She knows the software inside out after years of using it.
Origin of know
Old English, cnāwan (perceive)
Examples of know in a sentence
I know the answer to that question. Do you know the new manager? They know the rules by heart. I know how to fix the car. They know the rules of the game. She knows how to play the piano.
They know how to fix the car. She knows the answer to the question. They know the truth about the incident. He didn't know about the surprise party. Do you know if the store is open? She knows the relief of hearing good news. Only veterans know the fear of combat. Being in the know gives him an advantage at work. She is always in the know about the latest trends. The ancient knowe was covered in wildflowers. They picnicked on the sunny knowe by the river.
View all translations of know
Click below to see the appropriate translations facing each meaning.
- French:savoir, connaissance, ...
- German:wissen, Wissen, ...
- Italian:sapere, conoscenza, ...
- Spanish:saber, conocimiento, ...
- Portuguese:saber, conhecimento, ...
- Chinese:知道, 小土丘或小圆岗, ...
- Japanese:知る, 知識, ...
- Arabic:عَرَفَ, مَعْرِفَة, ...
- Hebrew:לָדַעַת, יְדִיעָה, ...
- Russian:знать, осведомленность, ...
- Ukrainian:знати, знання, ...
- Hindi:जानना, जानकारी, ...
icon to discover related terms: analogies, antonyms, common collocates, words with same roots, umbrella terms… Try with happening or hunch.
icon next to the first example to see two additional options and learn to use new vocabulary naturally.
icon to save words you want to revisit. You can also save a specific meaning by clicking on the