| subdue(verb, calm, dull, quiet, moderate) |
| suppress(verb, calm, dull, quiet, still) |
| turn down(verb, expression, reduce, moderate, subdue) |
| be quiet(quiet, still, silence) |
| become quieter |
| belt up |
| calm(verb, dull, quiet, silence, hush) |
| calm down(verb, expression, calm, dull, quiet) |
| clammed up(expression, quieten, shush, dulling) |
| clamming up(expression, suppress, stifle, quash, quieten) |
| closed up(expression, quieten, shush, dulling) |
| decrease volume(expression, quieten, shush, dulling) |
| dried up(expression, quieten, shush, dulling) |
| drying up(expression, quieten, muzzle, shush, dulling) |
| dulling(extinguish, quash, quieten, lull, shush) |
| dummied up(expression, quieten, shush, dulling) |
| keep down(expression, dampen, quieten, muffle, shush) |
| make less noise |
| overawed(suppress, stifle, quash, quieten, shush) |
| settle down(verb, expression, calm, dull, quiet) |