air hole
armhole
blowhole
bullet-hole
bunghole
cringle
deadeye
eye
eyelet
gasket
grommet
guide
knothole
loop
loophole
manhole
mousehole
peephole
pigeonhole
pinhole
placket
placket hole
porthole
punch-hole
spiracle
tap
vent
venthole
hole
doorknob
hasp
hinge
knocker
latch
padlock