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
change
change intensity
irrigate
lave
quiet
silence
wash
water
hushed
hushes
breathless
cold
dim
muffle
mute
ominous
respectful
solemn
stillness
tense
uneasy
Cush
Rush
blush
brush
crush
cush
dush
flush
frush
grush
gush
lush
mush
plush
rush
slush
thrush