Definition of Know

Verb: know (knew,known) now

Be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about
"I know that the President lied to the people"; "I want to know who is winning the game!"; "I know it's time";
- cognize, cognise [Brit]
Be aware of how to do or perform something
"She knows how to knit"; "Does your husband know how to cook?"
Be aware of the truth of something; have a belief or faith in something; regard as true beyond any doubt
"I know that I left the key on the table"; "Galileo knew that the earth moves around the sun"
Be familiar or acquainted with a person or an object
"She doesn't know this composer"; "Do you know my sister?"; "We know this movie"; "I know him under a different name"
Have firsthand knowledge of states, situations, emotions, or sensations
"I know the feeling!";
- experience, live
Accept (someone) to be what is claimed or accept his power and authority
- acknowledge, recognize, recognise [Brit]
Have fixed in the mind
"I know Latin"; "This student knows her irregular verbs"; "Do you know the poem well enough to recite it?"
Know the nature or character of
"we all knew her as a big show-off"
Be able to distinguish, recognize as being different
"The child knows right from wrong"
Perceive as familiar
"I know this voice!"
[archaic] Have sexual intercourse
"Adam knew Eve";
- sleep together, love, make out, make love, sleep with, have sex, do it, be intimate, have intercourse, lie with [archaic], bed, have a go at it, get it on, make whoopee, nail [N. Amer]

Noun: know now

The fact of being aware of information that is known to few people
"he is always in the know"