stopper (n.)
- bar
- bind
- block
- blockade
- bonnet
- bung
- cap
- caulk
- chink
- choke
- clincher
- clog
- close
- cock
- coif
- cork
- cover
- crown
- crusher
- dam
- deathblow
- dome
- end-all
- ender
- faucet
- fill
- finisher
- foul
- hat
- hood
- jam
- kayo
- knockout
- lid
- operculum
- pack
- peg
- pin
- plug
- quietus
- roof
- settler
- spigot
- spike
- spile
- spill
- stay
- stench
- stop
- stopgap
- stopple
- stuff
- tap
- tip
- top
- valve
