fly

1. noun /flaɪ/

a) Any insect of the order Diptera; characterized by having two wings, also called true flies.

We had a quick half-hour fly back into the city.

b) Especially, any of the insects of the family Muscidae, such as the common housefly (other families of Diptera include mosquitoes and midges).

As we left the house in my fly, which had been waiting, Van Helsing said:— ‘Tonight I can sleep in peace [...].’

2. verb /flaɪ/

a) To travel through the air.

Birds of passage fly to warmer regions as it gets colder in winter.

b) To flee, to escape.

The Concorde flew from Paris to New York faster than any other passenger airplane.

Syn: soar, hover, wing, skim, glide, ascend, rise, float, aviate, escape, flee, abscond

Ant: walk, remain, stay

3. adjective /flaɪ/

a) Quick-witted, alert, mentally sharp, smart (in a mental sense).

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 slightest gesture of illegal conveyancing. (Charles Dickens, "Arcadia"; Household Words [ Vol.7 p.381])

b) Well dressed, smart in appearance.

Hes pretty fly for a white guy.