Interjection
Used other than figuratively or idiomatically: see you, know.
(informal) Expression signifying a pause or hesitation.
(informal) Expression used to imply meaning, rather than say it, such as when a person is embarrassed.
A: I heard you want to do that thing with me.B: Do what?A: You know... umm...B: Oh, do you mean sex?A: Yeah... that.
(informal) Used as a rhetorical question to confirm agreement, knowing or understanding at the end of a statement.
But I guess that's life, you know?
I just wasn't into it, you know?
(informal) Used to introduce information.
You know, he's actually pretty nice.
You never know what is enough unless you know more than enough. William Blake
When you rise in life, your friends know who you are! When you fall down, you know who are your friends! Source: Internet
At the center of your being you have the answer; you know who you are and you know what you want. Laozi
Better the devil you know (than the one you don't). English Proverb
Don't celebrate someone's departing unless you know who will succeed him. Arabic Proverb
Know what you say, but don't say all that you know. Dutch Proverb