Aviation and aircraft

something that serves as a model or a basis for making copies; "this painting is a copy of the original"

A pit, or inclosed area, for cockfights.

a movable organ for flying (one of a pair)

The channel of a stream.

passing above and beyond ordinary bounds; "a flight of fancy"; "flights of rhetoric"; "flights of imagination"

Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground, or above a given level, or of on…

structure providing a place where boats can land people or goods

motor that converts thermal energy to mechanical work