Pronunciation spelling of flying.

Pronunciation spelling of flying.

(informal) A disc-shaped unidentified flying object or UFO; originally in reference to sightings by aviator Kenneth Arnold in Washington in 1947.

Anything not readily explainable appearing to move through or be suspended in the air, primarily used to refer to objects that seem to be at least of small familiar aircraft size. Abbreviated UFO.

That flies or can fly. / Brief or hurried. / Capable of speed / (nautical, of a sail) Not secured by yards. / (nautical, of a vessel) Capable of foiling.

present participle of fly

(countable, aviation) An act of flight. / (uncountable, aerodynamics) The action or process of sustained motion through the air.

A small, independent, military land unit capable of rapid mobility, often using guerrilla tactics against a larger force.

Any tropical marine fish of the family Dactylopteridae, having immense wing-like pectoral fins used to glide through the water.

Any activity involving aviation for recreation and competition. Flying sports include air racing, homebuilt aircraft, ultralight aviation, and hot-air ballooning.