- clock
- clop
- clot
- clout
- cock
- colt
- cook
- cookout
- cooktop
- cool
- coop
- coopt
- coot
- copout
- coup
- cuckoo
- cutout
- kook
- lock
- lockout
- lockup
- loco
- loll
- lollop
- look
- lookout
- lookup
- loop
- loot
- lotto
- lout
- occult
- outlook
- outpoll
- output
- plop
- plot
- pock
- poll
- pollock
- polo
- pool
- poop
- potluck
- poult
- pout
- pullout
- putout
- tock
- toll
- took
- tool
- toot
- tout