abate
abolish
abrogate
annihilate
annul
asphyxiate
black out
bottle up
cancel
censor
choke
choke off
clamp down on
cork
cork up
crack down on
crush
damp down
discharge
dissolve
drown
extinguish
gag
hold down
hugger-mugger
hush
hush up
hush-hush
invalidate
jump on
keep down
keep under
kill
muffle
muzzle
negate
nullify
overrule
overthrow
overwhelm
pour water on
put down
put out
quell
quench
reject
repress
rescind
squash
oppress
suppress
quashed
quashes
quashing
Bosch
mosh