mutter (n.)
- aspirate
- aspiration
- bark
- beef
- bellow
- bellyache
- bitch
- blare
- blubber
- boom
- bray
- breath
- buzz
- cackle
- chant
- chirp
- clamor
- coo
- crab
- croak
- crow
- cry
- drawl
- drone
- droning
- exhalation
- flute
- fret
- fumble
- fuss
- gabble
- gasp
- gibber
- gripe
- groan
- grouch
- grouse
- growl
- grumble
- grunt
- hiss
- holler
- howl
- jabber
- jeremiad
- keen
- kick
- lament
- lilt
- moan
- mouth
- muddle
- mumble
- mumbling
- murmur
- murmuration
- murmuring
- muttering
- outcry
- pant
- pipe
- plaint
- roar
- rumble
- rumor
- scold
- scream
- screech
- shriek
- sigh
- sing
- snap
- snarl
- snort
- sob
- splutter
- sputter
- squall
- squawk
- squeal
- susurration
- susurrus
- swallow
- thunder
- tirade
- trumpet
- twang
- ululation
- undertone
- wail
- warble
- whimper
- whine
- whisper
- whispering
- whistle
- yap
- yell
- yelp
- yowl
mutter (v.)
- aspirate
- bark
- bawl
- beef
- bellow
- bellyache
- bitch
- blare
- blat
- blubber
- boom
- bray
- breath
- breathe
- buzz
- cackle
- chant
- chirp
- clamor
- complain
- coo
- crab
- croak
- crow
- cry
- drawl
- drone
- exclaim
- flute
- fret
- fumble
- fuss
- gabble
- gasp
- gibber
- gripe
- groan
- grouch
- grouse
- growl
- grumble
- grunt
- hiss
- holler
- howl
- jabber
- keen
- kick
- lament
- lilt
- maunder
- moan
- mouth
- muddle
- mumble
- murmur
- mussitate
- outcry
- pant
- pipe
- repine
- roar
- rumble
- rumor
- scold
- scream
- screech
- shriek
- sibilate
- sigh
- sing
- snap
- snarl
- snort
- sob
- sough
- splutter
- sputter
- squall
- squawk
- squeal
- susurrate
- swallow
- thunder
- trumpet
- twang
- wail
- warble
- whimper
- whine
- whisper
- whistle
- yap
- yawp
- yell
- yelp
- yowl
Wizards that peep and that mutter.
