plural of air line

(engineering, construction) a hammer powered by compressed air

plural of Air Scout

(Scouting) A member of the international Scouting movement with a particular emphasis on aviation.

(Scouting) The collective activities of Air Scouts, members of the Scouting movement with a particular emphasis on aviation.

A bearing in which a thin film of pressurized air is used to provide an exceedingly low-friction load-bearing interface between surfaces.

An alveolus / An extension of a lung of some birds

The action of playing imaginary drums, usually to accompany music that one is listening to.

(skiing, snowboarding) A discipline in freestyle skiing and snowboarding, involving sliding down a large launch ramp and then launching off a big kicker, to obtain height and time in the air to perform acrobatic maneuvers, and land on a landing slope.

simple past tense and past participle of air-drop