shush (v.)
- assibilate
- buzz
- censor
- choke
- dumbfound
- effervesce
- fizz
- fizzle
- gag
- hiss
- hush
- kill
- lisp
- muffle
- muzzle
- quash
- quiet
- quieten
- repress
- sibilate
- silence
- siss
- sizz
- sizzle
- smother
- sneeze
- sniff
- sniffle
- snore
- snort
- snuff
- snuffle
- soft-pedal
- spit
- splutter
- sputter
- squash
- squelch
- squish
- stifle
- still
- strangle
- suppress
- swish
- throttle
- wheeze
- whish
- whistle
- whiz
- whoosh
- zip