keep (one's) voice down

keep (one's) voice down

To speak in a hushed voice or a whisper; to refrain from speaking too loudly. Shh! Keep your voices down! My parents are sleeping upstairs. I don't care if he was keeping his voice down—he shouldn't have been talking during the movie at all!
See also: down, keep, voice
Farlex Dictionary of Idioms.

keep your ˈvoice down

used to tell somebody to speak more quietly: Keep your voices down, won’t you? The children are asleep.
See also: down, keep, voice
Farlex Partner Idioms Dictionary
See also:
  • keep your voice down
  • lower (one's) voice
  • lower voice
  • raise (one's) voice
  • raise one's voice
  • raise voice
  • raise your voice
  • run off at the mouth, to
  • shoot off (one's) mouth
  • shoot off mouth