Keep quiet about something - Idioms by The Free Dictionary
keep quiet about something
keep quiet (about something)
To refuse to divulge any information (about something) to someone else. They offered me a ton of money to keep quiet, but I'm still going to testify at the trial. We all agreed to keep quiet about what we found that day.
keep quiet about something,
keep something quiet say nothing about something; keep something secret: I’ve decided to resign but I’d rather you kept quiet about it.
References in periodicals archive
The artistic director of Northern Stage has never been one to keep quiet about something
he feels strongly about.