air hole
armhole
bay
bay window
blowhole
bow window
bullet-hole
bunghole
casement
casement window
cringle
deadeye
eye
eyelet
fan window
fanlight
gasket
grille
grommet
guide
keyhole
knothole
lancet window
lantern
lattice
light
loop
loophole
louver window
manhole
mousehole
oriel
pane
peephole
picture window
pigeonhole
pinhole
placket
placket hole
port
punch-hole
rose window
scuttle
skylight
spiracle
tap
transom
vent
venthole
wicket
opening
window
committee-room
delicatessen
hatchway
index finger
perforation
plaz
ranchito
side
sinkhole
stair-step
vest-pocket
viewport