noun
(zoology) Any insect of the order Diptera; characterized by having two wings (except for some wingless species), also called true flies.
(non-technical) Especially, any of the insects of the family Muscidae, such as the common housefly (other families of Diptera include mosquitoes and midges).
Any similar but not closely related insect, such as a dragonfly, butterfly, or gallfly.
(fishing) A lightweight fishing lure resembling an insect.
(weightlifting) A chest exercise performed by moving extended arms from the sides to in front of the chest. (also flye)
(swimming) The butterfly stroke (plural is normally flys).
(obsolete) A witch's familiar.
(obsolete) A parasite.
(preceded by definite article) A simple dance in which the hands are shaken in the air, popular in the 1960s.
(finance) A butterfly (combination of four options).
verb
(intransitive) To travel through the air, another gas, or a vacuum, without being in contact with a grounded surface.
(ambitransitive, archaic, poetic) To flee, to escape (from).
(transitive, ergative) To cause to fly (travel or float in the air): to transport via air or the like.
(intransitive) To travel or proceed very fast; to hasten.
(intransitive) To move suddenly, or with violence; to do an act suddenly or swiftly.
(intransitive) To proceed with great success.
(intransitive, colloquial, of a proposal, project or idea) To be accepted, come about or work out.
(transitive, ergative) To display (a flag) on a flagpole.
(transitive) To hunt with a hawk.
(intransitive, entomology, of a type of moth or butterfly) To be in the winged adult stage.
noun
(obsolete) The action of flying; flight.
An act of flying.
(baseball) A fly ball.
(American football) Ellipsis of fly route.
A piece of canvas that covers the opening at the front of a tent.
(India, obsolete) The sloping or roof part of the canvas of a tent.
(often plural) A strip of material (sometimes hiding zippers or buttons) at the front of a pair of trousers, pants, underpants, bootees, etc.
The free edge of a flag.
The horizontal length of a flag.
(weightlifting) An exercise that involves wide opening and closing of the arms perpendicular to the shoulders.
The part of a weather vane pointing the direction from which the wind blows.
(nautical) That part of a compass on which the points are marked; the compass card.
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.
Ellipsis of flywheel.
(historical) A type of small, light, fast horse-drawn carriage that can be hired for transportation (sometimes pluralised flys).
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.
The pair of arms revolving around the bobbin, in a spinning wheel or spinning frame, to twist the yarn.
(weaving) A shuttle driven through the shed by a blow or jerk.
The person who took the printed sheets from the press.
A vibrating frame with fingers, attached to a power printing press for doing the same work.
One of the upper screens of a stage in a theatre.
(cotton manufacture) Waste cotton.
verb
(intransitive, baseball) To hit a fly ball; to hit a fly ball that is caught for an out. Compare ground (verb) and line (verb).
adjective
(slang, dated) Quick-witted, alert, mentally sharp.
(slang) Clandestine, surreptitious
(slang) Well dressed, smart in appearance; in style, cool.
(slang) Beautiful; displaying physical beauty.
noun
(rustic, Scotland, Northern England) A wing.
noun
Alternative form of vly (“swamp (in New York)”).