Verb
-
lessen in force or effect
"soften a shock"
"break a fall"
-
check
keep in check (a fire)
-
make vague or obscure or make (an image) less visible
"muffle the message"
-
reduce the amplitude (of oscillations or waves)
-
deaden (a sound or noise), especially by wrapping
- tone down -
make moist
"The dew moistened the meadows"
-
smother or suppress
"Stifle your curiosity"