Webster's English Dictionaryflier n. [Form Fly, v.; cf. Flyer]1. One who flies or flees; a runaway; a fugitive. (Shak.) 2. (Mach.) A fly. See Fly, n., 9, and 13 (b). () 3. (Spinning) See Flyer, n., 5. () 4. (Arch.) See Flyer, n., 4. () 5. An aroplane or flying machine. ()