fly

US /flaɪ/
UK /flaɪ/
"fly" picture
1.

move through the air using wings

:
Birds fly south for the winter.
The plane will fly directly to London.
2.

move or be thrown quickly through the air

:
The ball flew over the fence.
Dust flew everywhere as the car sped past.
3.

pass quickly

:
Time flies when you're having fun.
The days just fly by.
1.

a flying insect with two wings

:
A housefly landed on the table.
Swat that fly away!
2.

a flap of material covering the opening of a pair of trousers, shorts, or underwear

:
Check your fly, it's open.
He quickly zipped up his fly.