THESAURUS
Hush
allay, appease, assibilate, assibilation, awful silence, black out, buzz, calm, calm down, censor, choke, choke off, compose, conceal, cool, cover up, cradle, dead, dead of night, deathlike silence, dulcify, dumbfound, ease, effervesce, effervescence, effervescing, even out, fall silent, fizz, fizzle, fizzling, frication, frictional rustling, gag, gentle, golden silence, hide, hiss, hissing, hugger-mugger, hugger-muggery, hush of night, hush up, hush-hush, hushing, inaudibility, keep quiet, kill, lisp, lucid stillness, lull, mollify, muffle, mum, mute, muzzle, noiseless, noiselessness, pacify, peace, pipe down, placate, pour balm into, put to silence, quash, quell, quiesce, quiescence, quiet, quiet down, quieten, quietness, quietude, repress, rest, rhonchus, rock, rock to sleep, secretiveness, secretness, shush, shushing, shut down on, shut up, sibilance, sibilate, sibilation, siffle, sigmatism, silence, silent, silentness, siss, sissing, sit on, sizz, sizzle, sizzling, smooth, smooth down, smooth over, smoothen, smother, sneeze, sneezing, sniff, sniffle, snore, snort, snuff, snuffle, soft-pedal, soften, solemn silence, soothe, soundless, soundlessness, spit, splutter, sputter, squash, squelch, squish, stabilize, steady, sternutation, stertor, stifle, still, stillness, stilly, strike dumb, subdue, suppress, swish, tacitness, taciturnity, throttle, tomblike silence, tranquilize, tranquillity, wheeze, whish, whisht, whisper, whist, whistle, whistling, white noise, whiz, whoosh, zip
ROGET THESAURUS
Hush
Taciturnity
VB
be silent, keep silence, keep mum, hold one's tongue, hold one's peace, hold one's jaw, not speak, say nothing, keep one's counsel, seal the lips, close the lips, button the lips, zipper the lips, put a padlock on the lips, put a padlock on the mouth, put a bridle on one's tongue, bite one's tongue, keep one's tongue between one's teeth, make no sign, not let a word escape one, keep a secret, not have a word to say, hush up, hush, lay the finger on the lips, place the finger on the lips, render mute, stick in one's throat.
Moderation
VB
be moderate, keep within bounds, keep within compass, sober down, settle down, keep the peace, remit, relent, take in sail, moderate, soften, mitigate, temper, accoy, attemper, contemper, mollify, lenify, dulcify, dull, take off the edge, blunt, obtund, sheathe, subdue, chasten, sober down, tone down, smooth down, weaken, lessen, check palliate, tranquilize, pacify, assuage, appease, swag, lull, soothe, compose, still, calm, calm down, cool, quiet, hush, quell, sober, pacify, tame, damp, lay, allay, rebate, slacken, smooth, alleviate, rock to sleep, deaden, smooth, throw cold water on, throw a wet blanket over, turn off, slake, curb, tame, smooth over, pour oil on the waves, pour oil on the troubled waters, pour balm into, mattre de l'eau dans son vin, go out like a lamb, roar you as gently as any sucking dove.
Quiescence
VB
be quiescent, stand still, lie still, keep quiet, repose, hold the breath, remain, stay, stand, lie to, ride at anchor, remain in situ, tarry, mark time, bring to, heave to, lay to, pull up, draw up, hold, halt, stop, stop short, rest, pause, anchor, cast to an anchor, come to an anchor, rest on one's oars, repose on one's laurels, take breath, stop, stagnate, quieta non movere, let alone, abide, rest and be thankful, keep within doors, stay at home, go to bed, dwell, settle, alight, stick, stick fast, stand like a post, not stir a peg, not stir a step, be at a stand, quell, becalm, hush, stay, lull to sleep, lay an embargo on.
Silence
N
silence, stillness, peace, hush, lull, muteness, solemn silence, awful silence, dead silence, deathlike silence, silent, still, stilly, noiseless, soundless, hushed, mute, soft, solemn, awful, deathlike, silent as the grave, inaudible, silently, sub silentio, Int, hush!, silence!, soft!, whist!, tush!, chut!, tut!, pax!, be quiet!, be silent!, be still!, shut up!, chup!, chup rao!, tace!, one might hear a feather drop, one might hear a pin drop, so quiet you could hear a pin drop, grosse Seelen dulden still, le silence est la vertu de ceux qui ne sont pas sa, le silence est le parti le plus sar de celui se d_, silence more musical than any song, tacent satis laudant, better to be silent and thought a fool than to spe.
VB
be silent, hold one's tongue, render silent, silence, still, hush, stifle, muffle, stop, muzzle, put to silence.