Fly describes moving through the air, like birds that fly in the sky, or getting something accepted, like your silly excuse that's not going to fly with your history teacher.

Fly means "move through the air with wings," and it describes the movement of birds, airplanes, kites, and other things that float or move of their own accord above the ground. There are many other meanings of fly, including a buzzing insect with wings, a baseball hit high across a field, and the zipper on a pair of pants. As an adjective, fly means cool, though there's no guarantee it's still fly to use it.

Definitions of fly
  1. verb
    travel through the air; be airborne
    “Man cannot fly
    synonyms: wing
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    fly low
    fly in high wind
    fly in a flock
    fly on
    continue flying
    fly upwards or high in the sky
    hang in the air; fly or be suspended above
    be motionless, in suspension
    type of:
    go, locomote, move, travel
    change location; move, travel, or proceed, also metaphorically
  2. verb
    cause to fly or float
    fly a kite”
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    fly a kite
  3. verb
    display in the air or cause to float
    fly a kite”
    “All nations fly their flags in front of the U.N.”
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    type of:
    make visible or noticeable
  4. verb
    operate an airplane
    “The pilot flew to Cuba”
    synonyms: aviate, pilot
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    fly blind
    fly an airplane solely by relying on instruments
    fly contact
    fly a plane by using visible landmarks or points of reference
    fly alone, without a co-pilot or passengers
    test fly
    test a plane
    fly a jet plane
    fly in or as if in a glider plane
    hydroplane, seaplane
    glide on the water in a hydroplane
    ride in a hot-air balloon
    flat-hat, hedgehop
    fly very close to the ground
    hang glide, soar
    fly by means of a hang glider
    soar or fly like a kite
    sailplane, soar
    fly a plane without an engine
    type of:
    control, operate
    handle and cause to function
  5. verb
    travel in an airplane
    “she is flying to Cincinnati tonight”
    “Are we driving or flying?”
    aviate, pilot
    operate an airplane
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    travel on an overnight flight
    type of:
    undergo transportation as in a vehicle
  6. verb
    travel over (an area of land or sea) in an aircraft
    “Lindbergh was the first to fly the Atlantic”
    travel through the air; be airborne
    aviate, pilot
    operate an airplane
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    type of:
    journey, travel
    travel upon or across
  7. verb
    transport by aeroplane
    “We fly flowers from the Caribbean to North America”
    aviate, pilot
    operate an airplane
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    airlift, lift
    fly people or goods to or from places not accessible by other means
    type of:
    carry, transport
    move while supporting, either in a vehicle or in one's hands or on one's body
  8. noun
    two-winged insects characterized by active flight
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    Musca domestica, house fly, housefly
    common fly that frequents human habitations and spreads many diseases
    glossina, tsetse, tsetse fly, tzetze, tzetze fly
    bloodsucking African fly; transmits sleeping sickness etc.
    blow fly, blowfly
    large usually hairy metallic blue or green fly; lays eggs in carrion or dung or wounds
    Sarcophaga carnaria, flesh fly
    fly whose larvae feed on carrion or the flesh of living animals
    tachina fly
    bristly fly whose larvae live parasitically in caterpillars and other insects; important in control of noxious insects
    any of various large flies that annoy livestock
    bee fly
    hairy nectar-eating fly that resembles a bee; larvae are parasitic on larvae of bees and related insects
    Haematobia irritans, horn fly
    small black European fly introduced into North America; sucks blood from cattle especially at the base of the horn
    Calliphora vicina, bluebottle
    blowfly with iridescent blue body; makes a loud buzzing noise in flight
    greenbottle, greenbottle fly
    blowfly with brilliant coppery green body
    stout-bodied hairy dipterous fly whose larvae are parasites on humans and other mammals
    warble fly
    hairy bee-like fly whose larvae produce lumpy abscesses (warbles) under the skin of cattle
    cleg, clegg, horse fly, horsefly
    large swift fly the female of which sucks blood of various animals
    type of:
    dipteran, dipteron, dipterous insect, two-winged insects
    insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing
  9. noun
    fisherman's lure consisting of a fishhook decorated to look like an insect
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    dry fly
    a fly (fisherman's lure) that skims the surface of the water
    streamer fly
    an artificial fly that has wings extending back beyond the crook of the fishhook
    wet fly
    fisherman's fly that floats under the surface of the water
    type of:
    fish lure, fisherman's lure
    (angling) any bright artificial bait consisting of plastic or metal mounted with hooks and trimmed with feathers
  10. noun
    (baseball) a hit that flies up in the air
    synonyms: fly ball
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    a very long fly ball
    pop fly, pop-fly, pop-up
    a short high fly ball
    line drive, liner
    (baseball) a hit that flies straight out from the batter
    (baseball) a fly ball hit a short distance into the outfield
    Texas leaguer
    (baseball) a fly ball that falls between and infielder and an outfielder
    type of:
    hit, hitting, striking
    the act of contacting one thing with another
  11. verb
    hit a fly
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    type of:
    cause to move by striking
  12. verb
    move quickly or suddenly
    “He flew about the place”
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    type of:
    move so as to change position, perform a nontranslational motion
  13. verb
    run away quickly
    synonyms: flee, take flight
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    make a rupture in the ranks of the enemy or one's own by quitting or fleeing
    run away in a stampede
    abscond, absquatulate, bolt, decamp, go off, make off, run off
    run away; usually includes taking something or somebody along
    elope, run off
    run away secretly with one's beloved
    break loose, escape, get away
    run away from confinement
    retreat at full speed
    defect, desert
    desert (a cause, a country or an army), often in order to join the opposing cause, country, or army
    break, break away, break out
    move away or escape suddenly
    escape from, shake, shake off, throw off
    get rid of
    run off without paying a debt
    bilk, elude, evade
    escape, either physically or mentally
    move smoothly and easily
    run away
    escape from the control of
    desert one's party or group of friends, for example, for one's personal advantage
    escape, get away
    remove oneself from a familiar environment, usually for pleasure or diversion
    type of:
    break away, bunk, escape, fly the coop, head for the hills, hightail it, lam, run, run away, scarper, scat, take to the woods, turn tail
    flee; take to one's heels; cut and run
  14. verb
    be dispersed or disseminated
    “Rumors and accusations are flying
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    type of:
    go, locomote, move, travel
    change location; move, travel, or proceed, also metaphorically
  15. verb
    change quickly from one emotional state to another
    fly into a rage”
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    type of:
    undergo a change; become different in essence; losing one's or its original nature
  16. verb
    pass away rapidly
    “Time flies like an arrow”
    synonyms: fell, vanish
    vanish, vaporize
    decrease rapidly and disappear
  17. verb
    decrease rapidly and disappear
    synonyms: vanish, vaporize
    fell, vanish
    pass away rapidly
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    type of:
    decrease, diminish, fall, lessen
    decrease in size, extent, or range
  18. noun
    flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent
    synonyms: fly sheet, rainfly, tent flap, tent-fly
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    type of:
    any broad thin and limber covering attached at one edge; hangs loose or projects freely
  19. noun
    an opening in a garment that is closed by a zipper or by buttons concealed under a fold of cloth
    synonyms: fly front
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    type of:
    a vacant or unobstructed space that is man-made
  20. adjective
    (British informal) not to be deceived or hoodwinked
    alert, watchful
    engaged in or accustomed to close observation
Word Family

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