(construction) A sealed airspace in a cavity wall.

Alternative spelling of airspace

A type of toy constructed of light wood, a plastic propeller and a rubber band, propelled by repeatedly winding the propeller backwards and then releasing it into the air.

(idiomatic) Aggressive, disruptive behaviour on an aircraft.

An aircraft with rocket propulsion, including a rocket pack, a rocket plane, etc.

plural of Air Vice Marshal

(broadcasting) Synonym of on air.

(games) A game, played upon a table which lightly spurts air out of various holes on its surface in order to reduce friction, where each player must hit a light flat plastic puck into their opponent's goal using their own plastic mallet.

plural of air filter

A miniature, handheld paint sprayer, powered by compressed air or other gas, used for delicate, artistic painting, or sometimes retouching of photographs.