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

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.

A large Australasian bat, of the genera Pteropus or Acerodon in the family Pteropodidae, having a fox-like face. / Any bat of the family Pteropodidae (see Usage notes).

(informal) An itinerant bishop of the Church of England appointed to administer within another's diocese to those who refuse to accept the ordination of women.

(American spelling, idiomatic) Extremely well; in an exceptional, noteworthy, or extraordinary manner.

Any of 43 species of squirrels, most from the tribe Pteromyini within the family Sciuridae, others from family Anomaluridae, which glide from tree to tree.

Used other than figuratively or idiomatically: see flying, fish.

(dated) a military aviator who had shot down many enemy aircraft