aircraft

air letter (letter sent by airmail)

air show (a public display of stunt flying, aerobatics, and historical aircraft)

airway (flight path used by aeroplanes)

airline (company that flies airplanes)

air ticket (a pass entitling the holder to travel in an aeroplane)

aerospace

(military) the Japan Air Self-Defense Force

see you later (said by a person leaving, a stock phrase required by the Japanese etiquette, lit.: (after) going, I will come back)

run into, hit, strike