An airspace in which aircraft, especially military aircraft, are forbidden to fly.

Alternative form of no-fly list

(law, aviation) A confidential list containing the names of people who are not permitted to board an aircraft, prepared by government authorities in various jurisdictions and distributed to commercial airlines.

plural of no-fly zone

plural of no-fly list

plural of no fly list

A method of employing people in remote areas by flying them temporarily to the work site instead of permanently relocating them.

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

(archaic) A dragonfly.

Alternative spelling of barfly