Third-person singular simple present indicative form of air mail

plural of air mail

(chemistry, now historical) Hydrogen chloride (gas).

(chiefly UK) Synonym of change of scenery

plural of aileron roll

(aviation) An aerobatic maneuver in which the aircraft performs a full 360° revolution about its longitudinal axis.

(rare) streamlined

A commissioned military officer of the highest rank in the United States Air Force, NATO grade OF-10,. This rank is currently out of use.

plural of general of the air force

(military, slang) air commodore