keep your mouth shut
- silenceTotal lack of sound
- hushAbsence of sound
- secretConcealed information
- quietLacking in sound
- mumRefusing to speak
lips · sealed · tight-lipped · whisper · gossip · betray · confidential · zip · sworn · trust · tongue · bite · swallow · suppress · muzzle · gag · censor · shush
keep your mouth shutspeak up
Talk louder or opine
speak out · open your mouth · talk · speak · sound off
keep your mouth shutspill the beans
Reveal confidential information
blab · tell all · let the cat out of the bag · blow the whistle · snitch
keep your mouth shutspeak your mind
State honest opinions openly
speak truth to power · stand up and be counted · advocate · hold forth · protest