(transitive) to know (of), to be familiar with (a person, place, fact, event) / (transitive) to know, to experience (glory, hunger, problems etc.) / (transitive, archaic) to know (sexually) / (takes a reflexive pronoun) to be knowledgeable (en about) / (law, somewhat archaic) to hear or examine judicially; to judge or decide judicially

(informal) (transitive with en) to know about something, to have a good knowledge of something

(informal, figuratively) to know the score; to know the drill

(informal, figuratively) to know the score; to know the drill

(transitive) to know by sight

(informal) to be beside oneself with anger, to be furious

(informal, figuratively, simile) to know like the back of one's hand, to know backwards, to know inside and out

(informal) to know a fair bit about something, to know a thing or two about something, to know one's stuff, to know one's onions

(transitive, figuratively) to know backwards, to know inside and out, to know off pat, to have down pat

(transitive) to not know someone from Adam; to not know or recognize someone at all