(transitive) To maintain; to preserve; to prevent from deteriorating. / (transitive, idiomatic) To continue with (work, etc). / (intransitive, idiomatic) To stay even or ahead.

(idiomatic) To refrain from talking, especially to remain silent about something that may be sensitive or secret.

(idiomatic) To watch and pay attention to, in case of misbehaviour or mishap.

To remember; to be mindful of or pay attention to.

To remain silent. / (idiomatic) To refrain from talking about something; to keep a secret.

(cricket, intransitive) To act as wicket-keeper.

(idiomatic, imperative) To keep something secret.

(intransitive) To retain one's faith. / (transitive) To continue to have confidence in someone or something, and to support them or it.

(idiomatic) To monitor; to keep track of; to watch.

(transitive) to keep something near one.