verb, flew or, for 11, 19, flied, flown, fly⋅ing, noun, plural flies.| 1. | to move through the air using wings. |
| 2. | to be carried through the air by the wind or any other force or agency: bits of paper flying about. |
| 3. | to float or flutter in the air: flags flying in the breeze. |
| 4. | to travel in an aircraft or spacecraft. |
| 5. | to move suddenly and quickly; start unexpectedly: He flew from the room. |
| 6. | to change rapidly and unexpectedly from one state or position to another: The door flew open. |
| 7. | to flee; escape. |
| 8. | to travel in space: The probe will fly past the planet. |
| 9. | to move or pass swiftly: How time flies! |
| 10. | to move with an aggressive surge: A mother fox will fly at anyone approaching her kits. |
| 11. | Baseball.
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| 12. | Informal. to be acceptable, believable, or feasible: It seemed like a good idea, but it just wouldn't fly. |
| 13. | to make (something) float or move through the air: to fly a kite. |
| 14. | to operate (an aircraft, spacecraft, or the like). |
| 15. | to hoist aloft, as for display, signaling, etc.: to fly a flag. |
| 16. | to operate an aircraft or spacecraft over: to fly the Pacific. |
| 17. | to transport or convey by air: We fly merchandise to Boston. |
| 18. | to escape from; flee: to fly someone's wrath. |
| 19. | Theater.
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| 20. | a strip of material sewn along one edge of a garment opening for concealing buttons, zippers, or other fasteners. |
| 21. | a flap forming the door of a tent. |
| 22. | Also called tent fly. a piece of canvas extending over the ridgepole of a tent and forming an outer roof. |
| 23. | an act of flying; a flight. |
| 24. | the course of a flying object, as a ball. |
| 25. | Baseball. fly ball. |
| 26. | British. a light, covered, public carriage drawn by one horse; hansom; hackney coach. |
| 27. | Machinery. a horizontal arm, weighted at each end, that pivots about the screw of a press so that when the screw is lowered the momentum of the fly will increase the force of the press. |
| 28. | Also called fan. Horology. a regulating device for chime and striking mechanisms, consisting of an arrangement of vanes on a revolving axis. |
| 29. | Printing.
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| 30. | (on a flag)
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| 31. | flies. Also called fly loft. Theater. the space above the stage used chiefly for storing scenery and equipment. |
| 32. | Nautical. a propellerlike device streamed to rotate and transfer information on speed to a mechanical log. |
| 33. | fly out, Baseball, Softball. to be put out by hitting a fly ball that is caught by a player of the opposing team. |
| 34. | fly blind. blind (def. 33). |
| 35. | fly in the face of, to act in defiance of (authority, custom, etc.). Also, fly in the teeth of. |
| 36. | fly off the handle. handle (def. 16). |
| 37. | go fly a kite, Slang.
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| 38. | let fly,
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| 39. | on the fly,
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flew (flōō) v. Past tense of fly1. |
fly
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fly (flī)
n.
Any of numerous two-winged insects of the order Diptera.