Entry 5 senses Webster, 1913 Flier /(flī"ẽr)/ · Fli·er · IPA /flˈaɪər/ 01 n. One who flies or flees; a runaway; a fugitive. 1. One who flies or flees; a runaway; a fugitive. 2. A fly. See Fly, n., 9, and 13 (b).(Mach.) See: Fly 3. See Flyer, n., 5.(Spinning) See: Flyer 4. See Flyer, n., 4.(Arch.) See: Flyer 5. An aëroplane or flying machine.