air hole (n.)
- aerospace
- airspace
- airway
- armhole
- blowhole
- bump
- bunghole
- ceiling
- cringle
- crosswind
- deadeye
- eye
- eyelet
- fog
- front
- gasket
- grommet
- guide
- hole
- ionosphere
- keyhole
- knothole
- loop
- loophole
- louver
- manhole
- naris
- nostril
- overcast
- peephole
- pigeonhole
- pinhole
- placket
- porthole
- roughness
- shaft
- soup
- space
- spiracle
- stratosphere
- tap
- transom
- tropopause
- troposphere
- trough
- turbulence
- vent
- venthole
- ventilator
- visibility
