air hole
armhole
blowhole
bullet-hole
bunghole
cringle
deadeye
eye
eyelet
gasket
grommet
guide
keyhole
knothole
loop
loophole
manhole
mousehole
peephole
pigeonhole
placket
placket hole
porthole
punch-hole
spiracle
tap
vent
venthole
puncture
35-mm
areal
auto-focus
biocontainment
branchial
dabster
fisheye
isight
long-focus
megapixel
spy-eye
tamely
telephoto
vaporizer
window-like