the outside / the outdoors; a space not surrounded by walls; an open space

A jacket with airtight cells, or cavities which can be filled with air, to make the wearer buoyant when swimming.

(archaic) compressed air

plural of air motor

A motor that does mechanical work by expanding compressed air.

(American football) An offensive scheme developed by NFL coach Don Coryell.

A neighbourhood of Los Angeles, California, United States. Also spelt Bel-Air. / A census-designated place in Allegany County, Maryland, United States.

That portion of air which cannot be expelled by the most violent efforts from the lungs.

plural of air engine

An engine put into motion by air expanded by heat.