Synonyms for Keep it down:

• v.

  •mute (verb)
  • reduce,
  • lower,
  • soften,
  • benumb,
  • hush,
  • deaden,
  • subdue,
  • dampen,
  • drown,
  • bottle up,
  • gag,
  • soft-pedal,
  • muzzle,
  • moderate.
  •silence (verb)
  • dull,
  • clam,
  • quash,
  • hold one's tongue,
  • cool it,
  • dry up,
  • quiet,
  • quiet down,
  • quell,
  • hush-hush,
  • stifle,
  • suppress,
  • close up,
  • hush one's mouth,
  • strike dumb,
  • cut short,
  • extinguish,
  • overawe,
  • lull,
  • shut up,
  • tongue-tie,
  • sit on,
  • squelch,
  • clam up,
  • choke off,
  • dummy up,
  • muffle,
  • dumb,
  • still,
  • say nothing,
  • cut off.

• Other synonyms:

  •Other relevant words:
  • decrease volume,
  • corked up,
  • kept down,
  • cork up,
  • put the lid on,
  • pipe down,
  • put damper on,
  • mute,
  • silence,
  • keep down,
  • turn down,
  • put lid on,
  • decrease the volume,
  • corking up.
  •quieten
  • quietened.
  •silence
  • closes up,
  • dulls,
  • dummied up,
  • overawed,
  • saying nothing,
  • clammed up,
  • dried up,
  • dumbed,
  • dumbing,
  • drying up,
  • Clammed,
  • sitting on,
  • Overawing,
  • clamming up,
  • tongue tie,
  • struck dumb,
  • closing up,
  • Clamming,
  • dumbs,
  • choked off,
  • Dulling,
  • hold tongue,
  • choking off,
  • quieted down,
  • closed up,
  • overawes.
  •Other relevant words (noun):
  • quieten,
  • shush.

Antonyms for Keep it down:

• v.

  • mute
    let go, voice, raise, liberate, strengthen, free, articulate, increase, speak.
  • quieten
    agitate, irritate, disturb.
  • silence
    help, be noisy, release, permit, talk, communicate, allow, encourage, start.