present participle of know someone

Third-person singular simple present indicative form of know someone

simple past tense of know someone

(idiomatic) Being someone's liability or responsibility; with which someone is lumbered. / (idiomatic) Available to be used by someone; in someone's possession.

(UK, Ireland, New England, Newfoundland, Australia, New Zealand) An exclamation of encouragement or congratulation: well done. / (Australia, New Zealand) Used to express thanks.

(idiomatic, mostly used conditionally) in someone's situation.

(informal) One's decisions or actions will bring undesirable consequences only on oneself.

(idiomatic) Someone is the butt of a joke or is experiencing a negative outcome, especially if that person was trying to make someone else the butt of the joke or subject them to the negative outcome.

Fully available to help or to be of use to someone, or some organisation. / (formal) By way of introduction on first meeting another person.

For someone's sake. / According to someone's interpretation or account.