Word.ws English Dictionary

fly

/flaɪ/

More pronunciations (1)Fewer pronunciations

Australia[ˈflɑ̟ɪ̯]

fly noun: any insect of the order Diptera; characterized by having two wings (except for some wingless species), also called true flies. Also the ellipsis of fly route.

fly: any insect of the order Diptera; characterized by having two wings (except for some wingless...
Image: KoS, CC BY-SA 3.0, via Wikimedia Commons

Noun (1)

fly (plural flies)

  1. Any insect of the order Diptera; characterized by having two wings (except for some wingless species), also called true flies.
    • Devils Lake is where I began my career as a limnologist in 1964, studying the lake’s neotenic salamanders and chironomids, or midge flies. […] The Devils Lake Basin is an endorheic, or closed, basin covering about 9,800 square kilometers in northeastern North Dakota.2012 January, Douglas Larson, “Runaway Devils Lake”, in American Scientist, volume 100, number 1, page 46
  2. (non-technical) Especially, any of the insects of the family Muscidae, such as the common housefly (other families of Diptera include mosquitoes and midges).
    • When you're well enough off so's you don't have to fret about anything but your heft or your diseases you begin to get queer, I suppose. And the queerer the cure for those ailings the bigger the attraction. A place like the Right Livers' Rest was bound to draw freaks, same as molasses draws flies.1913, Joseph C[rosby] Lincoln, chapter V, in Mr. Pratt’s Patients, New York, N.Y.; London: D[aniel] Appleton and Company, →OCLC
    • October in Orania can be charming. When the sun sets, long ribbons of burnt orange settle on the horizon. The flies and mosquitoes that come with the oppressive summer heat haven’t arrived yet. It is Magdalene Kleynhans’ favourite time of year. “You can sit outside until late into the night,” says...2019 October 24, Dennis Webster, “'An indictment of South Africa': whites-only town Orania is booming”, in The Guardian, archived from the original on 29 Mar 2022
  3. Those or any similar but not closely related insect, such as a dragonfly, butterfly, or gallfly.
  4. A lightweight fishing lure resembling an insect.
    • I went on trying for fish along the western bank down the river, but only small trout rose at my flies, and a score was the total catch.1886, Peter Christen Asbjø￵rnsen, translated by H.L. Brækstad, Folk and Fairy Tales, page 152
  5. A chest exercise performed by moving extended arms from the sides to in front of the chest. (also flye)
  6. The butterfly stroke (plural is normally flys).
  7. (obsolete) A witch's familiar.
    • a trifling fly, none of your great familiars1610 (first performance), Ben[jamin] Jonson, The Alchemist, London: […] Thomas Snodham, for Walter Burre, and are to be sold by Iohn Stepneth, […], published 1612, →OCLC, (please specify the Internet...
  8. (obsolete) A parasite.
    • The fly that plays too near the flame burns in it.1636, Philip Massinger, “The Bashful Lover”, in William Gifford, editor, The Plays of Philip Massinger, published 1845, act 1, scene 1, page 470
  9. (preceded by definite article) A simple dance in which the hands are shaken in the air, popular in the 1960s.
  10. A butterfly (combination of four options).

Verb (1)

fly (third-person singular simple present flies, present participle flying, simple past flew, past participle flown)

  1. (intransitive) To travel through the air, another gas, or a vacuum, without being in contact with a grounded surface.
    • Birds of passage fly to warmer regions as it gets colder in winter.
    • The probe flew beyond the solar system.
    1. (intransitive) To take a flight on a plane; to pilot or crew a plane.
      • My airline needs me to get clearance before I can fly again.
      • If we want to fly today, we need to leave for the airport right now.
    2. (intransitive) To be in the winged adult stage.
      • This species flies from late summer until frost.
    3. (colloquial, figuratively, intransitive, project or idea) To be accepted, come about or work out.
      • Let's see if that idea flies.
      • You know, I just don't think that's going to fly. Why don't you spend your time on something better?
  2. (transitive) To cause to fly (travel or float in the air): to transport via air or the like.
    • Charles Lindbergh flew his airplane The Spirit of St. Louis across the Atlantic ocean.
    • Birds fly their prey to their nest to feed it to their young.
    1. (transitive) To arrange for someone to take a flight.
      • We flew the kids out to see their grandparents.
    2. (transitive) To pilot a plane over a region or on a route.
      • This is the first time I flew the Pacific.
      • I'm hoping to fly the London-New York route so I can see the Big Apple again.
    3. (transitive) To complete (a goal, task, mission, etc.) while crewing an aircraft or spacecraft.
      • NASA astronaut Mike Fincke is departing the agency on Wednesday after 30 years of service. Throughout his career, he flew four missions, spent 549 days in space, and completed nine spacewalks in support of the International Space Station.2026 August 12, Lauren E. Low, “NASA Astronaut Mike Fincke Leaves NASA, Career Includes 4 Spaceflights”, in NASA, archived from the original on 13 Aug 2026
    4. (transitive) To hunt with a hawk.
      • We'll fly the partridge, or go rouse the deer.c. 1590, Robert Greene, Friar Bacon and Friar Bungay
  3. (ergative) To wave or flutter; to cause to wave or flutter.
    • When the wind picked up, her hair flew back behind her head.
    • In her dance, she holds her hands above her head to fly those colorful ribbons in the air.
    1. (ergative) To operate a kite (A lightweight toy or other device... carried on the wind and tethered and controlled from the ground by one or more lines).
      • Why don’t you go outside and fly kites, kids? The wind is just perfect.
    2. (ergative) To display (a flag) on a flagpole; to be displayed on a flagpole.
      • We flew the state flag under the national flag.
      • The flag flew at half-mast.
    3. (ergative, figuratively, transitive) To proudly and openly make one's allegiances or viewpoint apparent.
      • She's really letting the freak flag fly.
      • Only one candidate is willing to fly the conservative flag boldly.
    4. (ergative, figuratively) To symbolically rule over or control.
      • The French flag flew over Louisiana until 1803.
      • The king endeavored to fly his nation's flag over new territories.
  4. (intransitive) To drain away or be expended quickly.
    • The family fortune flew in a few short years.
    1. (dated, intransitive) To vanish; to fade away.
      • The mist flew by noon.
  5. (figuratively, intransitive) To travel or proceed very fast; to hasten.
    • He flew down the hill on his bicycle.
    • It's five o'clock already. Doesn't time fly?
    Synonyms:
    dart, flit, speed
    1. (figuratively, intransitive) To move suddenly, or with violence; to carry out an act suddenly or swiftly.
      • a door flies open
      • a bomb flies apart
    2. (figuratively, intransitive) To proceed with great success.
      • His career is really flying at the moment.
      • One moment the company was flying high, the next it was on its knees.
    3. (archaic, figuratively, intransitive, literary, transitive) To avoid or shun.
      • I must fly the temptation of drink.
    4. (ambitransitive, archaic, figuratively, intransitive, poetic) To flee, to escape (from).
      • My bird flew the cage.
      • Fly, my lord! The enemy are upon us!

Noun (2)

fly (plural flys or flies)

  1. (obsolete) The action of flying; flight.
  2. An act of flying.
    • There was a good wind, so I decided to give the kite a fly.
  3. A fly ball.
  4. A piece of canvas that covers the opening at the front of a tent.
  5. (India, obsolete) The sloping or roof part of the canvas of a tent.
    • [T]he main part of the operation of pitching the tent, consisting of raising the flies, may be performed, and shelter afforded, without the walls, &c., being present.1810, Thomas H. Williamson, The East India Vade-Mecum, page 452
    • The cavalcade drew up in line, / Pitch'd the marquee, and went to dine. / The bearers and the servants lie / Under the shelter of the fly.1816, The Grand Master, or Adventures of Qui Hi, page 152
  6. (often in the plural with the same meaning) A strip of material (sometimes hiding zippers or buttons) at the front of a pair of trousers, pants, underpants, bootees, etc.
    • Ha-ha! Your fly's undone!
    • your fly's undone/down
  7. The moving portion of an extendable ladder.
  8. The free edge of a flag.
  9. The horizontal length of a flag.
  10. An exercise that involves wide opening and closing of the arms perpendicular to the shoulders.
  11. The part of a weather vane pointing the direction from which the wind blows.
  12. That part of a compass on which the points are marked; the compass card.
    • to the fly of the compass, which before was made equal, I was still constrained to put some small piece of wire on the south part therea. 1850, Robert Norman, (Please provide the book title or journal name)
Show 9 more meaningsShow fewer meanings
  1. Two or more vanes set on a revolving axis, to act as a fanner, or to equalize or impede the motion of machinery by the resistance of the air, as in the striking part of a clock.
  2. (historical) A type of small, light, fast horse-drawn carriage that can be hired for transportation (sometimes pluralised flys).
    • A fly carried him rapidly to Lady Clavering’s house from the station […]1848 November – 1850 December, William Makepeace Thackeray, chapter 74, in The History of Pendennis. […], volume (please specify |volume=I or II), London: Bradbury and Evans, […], published...
    • Can I get a fly, or a carriage of any kind? Is it too late?
    • I dismissed the fly a mile distant from the park, and getting my directions from the driver, proceeded by myself to the house.1859, Wilkie Collins, The Woman in White
  3. In a knitting machine, the piece hinged to the needle, which holds the engaged loop in position while the needle is penetrating another loop; a latch.
  4. The pair of arms revolving around the bobbin, in a spinning wheel or spinning frame, to twist the yarn.
  5. A shuttle driven through the shed by a blow or jerk.
  6. (historical) The person who took the printed sheets from the press.
  7. (historical) A vibrating frame with fingers, attached to a power printing press for doing the same work.
  8. One of the upper screens of a stage in a theatre.
    • It was as if I been idling on a brightly lit stage-set of a country garden, ripe with every sort of pastoral fancy, and then had turned a flat and come on the stagehands and the wings, the propped sets, the men working in the flies—all the dark mechanics that produced the pretty picture the...2006, Alistair Cooke, The American Home Front, 1941-1942, page 128
  9. (cotton manufacture) Waste cotton.

Verb (2)

fly (third-person singular simple present flies, present participle flying, simple past and past participle flied or flyed)

  1. (intransitive) To hit a fly ball; to hit a fly ball that is caught for an out. Compare ground (verb) and line (verb).
    • Jones flied to right in his last at-bat.

Adjective

fly (comparative flier or flyer, superlative fliest or flyest)

  1. (dated, slang) Quick-witted, alert, mentally sharp.
    • be assured, O man of sin—pilferer of small wares and petty larcener—that there is an eye within keenly glancing from some loophole contrived between accordions and tin breastplates that watches your every movement, and is "fly,"— to use a term peculiarly comprehensible to dishonest minds—to the...1854, Charles Dickens, “Household Words”, in Arcadia, volume 7, page 381
  2. (slang) Clandestine, surreptitious
    • Some say God was an alien that tampered with our DNA, the 3 kings followed ufos & Mary had a fly shag 🤔🤫2023 December 1, @Davo_Mack, Twitter
  3. (slang) Well dressed, smart in appearance; in style, cool.
    • He's pretty fly.
    • when Ortega got fixed up in his fly duds like that, an ord'nary man's overcoat wouldn't make 'im a pair o' socks.1888, Frederick Thickstun Clark, A Mexican Girl, page 270
  4. (slang) Beautiful; displaying physical beauty.
    • [Rahiem] My name brings peace and tranquility / So all the fly ladies' hearts can run free1979, “We Rap More Mellow”, performed by The Younger Generation
    • Word is bond she looked divine, she looked as fly as can be
      I thought she was different cause she was by herself
      She looked real wholesome, and in good physical health1991, “Busy Doin Nuthin”, in I Need a Haircut, performed by Biz Markie

Noun (3)

fly (plural flies)

  1. (Northern England, Scotland, rustic) A wing.
    • The bullet barely grazed the wild fowl's fly.

Proper noun (1) capitalized: Fly

Fly

  1. A river in Papua New Guinea

Proper noun (2) capitalized: Fly

Fly (plural Flys)

  1. A surname.

Also used as

fly is also the ellipsis of fly route.

fly is also the ellipsis of flywheel.

fly is also the alternative form of vly.

fly meaning in Hindi, Tamil, Marathi and Urdu

fly in Hindi

insect of the family Muscidae
मक्खी makkhī, मगस magas
to travel through air
उड़ना uṛnā

fly in Tamil

insect of the order Diptera
ஈ ī
insect of the family Muscidae
ஈ ī
to travel through air
பற paṟa
to be accepted
செல் cel

fly in Marathi

insect of the order Diptera
माशी māśī
insect of the family Muscidae
माशी māśī
to travel through air
उडणे uḍṇe
to cause to travel through the air
उडवणे uḍavṇe

fly in Urdu

insect of the family Muscidae
مَکھّی makhhī, مَگَس magas
to travel through air
اُڑْنا uṛnā
More languagesFewer languages
fly in Bengali
মাছি machi, ওড়া ōṛa
fly in Telugu
ఈగ īga, ఎగరవేయు egaravēyu
fly in Malayalam
ഈച്ച īcca
fly in Kannada
ಹಾರಲು, ಹಾರಾಡಲು
fly in Punjabi
ਉੱਡਣਾ
fly in Gujarati
ઉડવું, ઉડવા
fly in Odia
ମାଛି māchi
fly in Sanskrit
मक्षिका makṣikā
fly in Sinhala
ඉගිල්ලෙනවා igillenawā
fly in Assamese
মাখি makhi, উৰ ur
fly in Nepali
उड्न
fly in Pashto
مچ məč, مګس magas, الوتل alwatəl
fly in Tagalog
langaw, lipad, lumipad
fly in Arabic
ذُبَابَة ḏubāba, دبان dibbān, دبانة dibbāna, ذُبَّانة dubbāna
fly in Malay
lalat, langau, terbang, menerbangkan
fly in Indonesian
lalat, laler, langau, terbang
fly in Persian
دوبالان dobâlân, مَگَس magas, پَرْواز کَرْدَن parvâz kardan, پَریدَن paridan
fly in Thai
แมลงวัน má-lɛɛng-wan, บิน bin, หนี nǐi
fly in Vietnamese
ruồi, bay
fly in Myanmar
ယင်ကောင် yangkaung, ပျံ pyam
Kashmiri
مٔچھ mạch

Examples of fly in a sentence

  • It takes about eleven hours to fly from Frankfurt to Hong Kong.
  • Angels can fly because they take themselves lightly.1909, Gilbert Keith Chesterton, Orthodoxy:
  • I want to reach out and touch the sky / I want to touch the sun, but I don't need to fly1972, “Supernaut”, performed by Black Sabbath:
  • Flying using only the power of the sun is an enticing prospect.2013 September 7, “On a bright new wing”, in The Economist, volume 408, number 8852:
  • A solar-powered unmanned aerial system (a UAS, more commonly called a drone) could fly long, lonely missions that conventional aircraft would not be capable of.2013 September 7, “On a bright new wing”, in The Economist, volume 408, number 8852:

All 40 example sentences with fly

Synonyms of fly

9 more synonymsFewer synonyms

Antonyms

All synonyms and antonyms of fly

Forms of fly

Noun
pluralflies
pluralflys
Verb
third-person singular presentflies
present participleflying
pastflew
past participleflown
past participleflied
pastflied
past participleflyed
pastflyed
second-person singular present (archaic)fliest
second-person singular present (archaic)flyest

Past tense of fly: flew

Plural of fly: flies

Origin of fly

From Middle English fflye, flehe, flei, fleie, fley, fleye, fleȝe, flie, fliȝe, flye, vliȝe, vlye, from Old English flēge, flēoge, flīeġe (“a fly”), from Proto-West Germanic *fleugā, from Proto-Germanic *fleugǭ (“a fly”), from Proto-Indo-European *plewk- (“to flow, fly, run; to splash”), enlargement of *plew- (“to flow, fly, run”). Cognates Cognate with Scots flee, flei (“fly”), North Frisian fleeg (“fly”), Saterland Frisian Fljooge (“fly”), Alemannic German Flüüge (“fly”), Cimbrian blòiga, vlòiga (“fly”), Dutch vlieg (“fly”), German Fliege (“fly”), Low German Fleeg (“fly”), Vilamovian fłig, fłyjǵ (“fly”), Yiddish פֿליג (flig, “fly”), Danish and Norwegian Bokmål flue (“fly”), Faroese, Icelandic, and Swedish fluga (“fly”), Norwegian Nynorsk fluga, fluge, fluggu, flugu (“fly”).

From Middle English flei, fley, fleye, fleȝhenn, flien, fliȝe, flyen, flyyn, from Old English flēgan, flēogan, from Proto-West Germanic *fleugan, from Proto-Germanic *fleuganą (“to fly”), from Proto-Indo-European *plewk- (“to flow, fly, run; to splash”), enlargement of *plew- (“to flow, fly, run”). Compare Etymology 1. Cognates Cognate with Scots flei (“to fly”), Yola vlee (“to fly”), North Frisian fli, fliin, fliine, fliinj, flä, fläie, flö (“to fly”), Saterland Frisian fljoge, fljooge (“to fly”), West Frisian fleane (“to fly”), Central Franconian fleeje (“to fly”), Dutch vliegen (“to fly”), Low German flegen (“to fly”), German fliegen (“to fly”), Luxembourgish fléien (“to fly”), Vilamovian fłig (“to fly”), Yiddish פֿליִען (flien, “to fly”), Danish flyve (“to fly”), Faroese fljúgva, flúgva (“to fly”), Icelandic fljúga (“to fly”), Norwegian Bokmål fly, flyge, flyve (“to fly”), Norwegian Nynorsk fljuga, fly, flyga, flyge (“to fly”), Scanian flyğa (“to fly”), Swedish flyga (“to fly”); also Cornish lew (“rudder”), Old Irish luí (“rudder”), Welsh llyw (“rudder”), Latin pluit, pluō (“to rain”), Ancient Greek πλέω (pléō, “to sail; to float”), Lithuanian plaukti (“to swim; to float”)...

From Middle English flye (“flying, flight”), from Old English flyġe (“flying, flight”), from Proto-Germanic *flugiz.

Words formed from fly

Phrases with fly

157 more phrasesFewer phrases

Words that rhyme with fly

48 more rhymesFewer rhymes

Questions about fly

What does fly mean?
Fly means any insect of the order Diptera; characterized by having two wings (except for some wingless species), also called true flies.
What is fly in Hindi?
Fly in Hindi is मक्खी (makkhī), मगस (magas), उड़ना (uṛnā). See Fly meaning in Hindi.
How do you use fly in a sentence?
It takes about eleven hours to fly from Frankfurt to Hong Kong.
What part of speech is fly?
Fly can be a noun, a verb, an adjective or a proper noun.
How do you pronounce fly?
Fly is pronounced /flaɪ/.
What is the plural of fly?
The plural of fly is flies.

Words near fly in the dictionary

  1. Fluxus
  2. fluxweed
  3. fluxy
  4. fluyt
  5. fluyts
  6. fly
  7. fly a desk
  8. fly a kite
  9. fly agaric
  10. fly agarics
  11. fly amanita

Source and license

Adapted from Wiktionary: fly (page history and authors); Fly (page history and authors); fly (Kannada, IndicTrans2 machine translation) (model and license); fly (Punjabi, IndicTrans2 machine translation) (model and license); fly (Gujarati, IndicTrans2 machine translation) (model and license); fly (Nepali, IndicTrans2 machine translation) (model and license). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-fly.ogg.

Cite this entry: “fly.” Word.ws, https://word.ws/fly. Based on Wiktionary, CC BY-SA 4.0.