bar
bind
block
block up
blockade
bung
caulk
check valve
chink
choke
choke off
choke up
clog
clog up
cock
congest
constipate
cork
cover
dam
dam up
faucet
fill
fill up
foul
jam
lid
obstipate
obstruct
pack
peg
pin
plug
plug up
sea cock
spigot
spike
spile
spill
stanch
stay
stench
stop
stop up
stopgap
stoppe
stopper
stuff
stuff up
secure
stoppled
stopples
stoppling
India rubber
bicuspid
cistus
cobwebbed
corker
gun-barrel
limerick
linchpin
lockwire
padeye
pipette
pothole
pricker
tailpiece
unplugged
wickerwork