(transitive) To become acquainted with (someone or something); to meet someone. / Used other than figuratively or idiomatically: see get, know.

(set phrase) To recognize that a statement or belief is false or doubtful. / (set phrase) To understand that certain behavior is wrongful, futile, or inappropriate.

present participle of know someone

plural of know-nothing

Ignorant; characterized by foolish denial of facts or beliefs in that which is not true.

An ignorant person; one who lacks knowledge.

(idiomatic) Indicates agreement, approval, encouragement.

For success, and especially to obtain employment, one's knowledge and skills are less useful and less important than one's network of personal contacts.

The name of something the speaker does not want to mention, but which is known, or very likely to be known, to the listener. It can be plural (as in "... the you-know-whats").

(idiomatic) A phrase used to get someone's attention before announcing something.