hush up

verb

(intransitive, informal) To become quiet; to cease making sounds. / (transitive) To keep secret, to prevent from becoming known.

She told him to hush up during the movie.

意味（1）

(intransitive, informal) To become quiet; to cease making sounds.

Hush up now; you have talked too much.

意味（2）

(transitive) To keep secret, to prevent from becoming known.

They hushed up the suicide to prevent bad publicity.