effervesce (v.)
- assibilate
- blubber
- boil
- bubble
- burble
- buzz
- enthuse
- ferment
- fizz
- fizzle
- guggle
- gurgle
- gush
- hiss
- hush
- lisp
- plop
- rave
- rhapsodize
- seethe
- shush
- sibilate
- simmer
- siss
- sizz
- sizzle
- sneeze
- sniff
- sniffle
- snore
- snort
- snuff
- snuffle
- sparkle
- spit
- splutter
- sputter
- squash
- squelch
- squish
- swish
- wheeze
- whish
- whistle
- whiz
- whoosh
- work
- zip