A vehicle capable of atmospheric flight due to interaction with the air, such as buoyancy or lift

(nonstandard) plural of aircraft

Any engine used to propel an aircraft, including jet engines and rocket engines etc.

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

(aviation) The orientation of an aircraft with respect to the horizon.

plural of aircraft attitude

A proposed aircraft that would be powered by nuclear energy.

plural of aircraft carrier

A military aircraft designed primarily for air-to-air combat with other aircraft.

A (generally military) airplane used to refuel a second aircraft during flight.