Simple Definition of flyby
: a usually low flight past a group of people at an air show, during a parade, etc., by an aircraft or group of aircraft
: a flight of a spacecraft past a planet, moon, etc.
Full Definition of flybyplural
1 : a prearranged usually low-altitude flight by one or more airplanes over a public gathering (as an air show)
2 a : a flight of a spacecraft past a celestial body (as Mars) close enough to obtain scientific data b : a spacecraft that makes a flyby
First Known Use of flyby
Rhymes with flyby
aby, agley, air-dry, Alai, ally, Altai, anti, apply, assai, awry, aye-aye, Bacchae, Baha'i, banzai, barfly, bee fly, Belgae, belie, bigeye, big lie, black eye, blackfly, black tie, blow-dry, blowby, blowfly, blue-sky, Bo Hai, bone-dry, bonsai, botfly, Brunei, buckeye, bugeye, bye-bye, canaille, catchfly, cat's-eye, Chennai, chess pie, Chiang Mai, cockeye, cockshy, come by, comply, cow pie, crane fly, cross-eye, deadeye, decry, deep-fry, deep-sky, deerfly, defy, Delphi, deny, descry, do by, dong quai, drip-dry, drop by, dry eye, dry fly, elhi, Eli, espy, face fly, firefly, fish-eye, flesh fly, fly high, forby, freeze-dry, frogeye, fruit fly, gadfly, gallfly, get by, GI, glass eye, go by, good-bye, greenfly, grisaille, gun-shy, Haggai, Hawkeye, heel fly, hereby, hi-fi, hog-tie, horn fly, horsefly, housefly, imply, jai alai, July, Karzai, Kasai, knee-high, lanai, Lanai, lay-by, lay by, Lehigh, let fly, Levi, lie by, magpie, mai tai, mao-tai, Masai, mayfly, medfly, mind's eye, Moirai, mooneye, Mumbai, my eye, nearby, necktie, nilgai, nisi, outbye, outcry, oxeye, pad thai, Panay, panfry, Parcae, piece-dye, pigsty, pinkeye, Po Hai, pop eye, pop fly, potpie, put by, Qinghai, quasi, rabbi, red-eye, rely, reply, rib eye, ride high, rocaille, rough-dry, run dry, Sakai, sand fly, sci-fi, screw eye, semi, Sendai, serai, set by, shanghai, Shanghai, sheep's eye, shoofly, shut-eye, Sinai, sky-high, small-fry, stand by, standby, stir-fry, string tie, supply, swear by, terai, test-fly, thereby, tie-dye, titi, tongue-tie, Transkei, twist tie, two-ply, untie, vat dye, Versailles, walleye, well-nigh, whereby, whitefly, wild rye, wise guy
Seen and Heard
What made you want to look up flyby? Please tell us where you read or heard it (including the quote, if possible).