verb
/ˈflaɪ/ flies; flew /ˈfluː/; flown /ˈfloʊn/; flying
[no obj] :to move through the air with wings
[no obj] :to move through the air especially at a high speed
to control an airplane, helicopter, etc., as it moves through the air :to be the pilot of an aircraft [+ obj]
[+ obj] :to journey over (something, such as an ocean) by flying an airplane
[no obj] :to travel in an aircraft or spacecraft
[+ obj] :to travel by flying on (a particular airline)
[+ obj] :to carry (someone or something) to a place in an aircraft
to show (something, such as a flag) by putting it in a high place [+ obj]
[+ obj] :to cause (something, such as a kite) to fly in the air
[no obj] :to move or go quickly
[no obj] :to move freely
[no obj] :to pass very quickly
[no obj] chiefly US informal :to be approved or accepted - usually used in negative statements
as the crow flies
fly at
[phrasal verb]
fly at (someone) :to attack (someone) with sudden violence
fly high
informal
to be very happy and excited
to be very successful
fly in the face of
also US fly in the teeth of
to fail completely to agree with (something) :to oppose or contradict (something) directly
fly into
[phrasal verb]
fly into (something) :to be overcome by (sudden extreme emotion)
fly off the handle
informal :to lose control of your emotions :to become very angry
fly the coop
informal :to leave suddenly or secretly :to escape or go away
let fly
or let fly with
informal :to throw (something) in a forceful way
verb
flies; flied; flying
[no obj] baseball :to hit a fly ball
noun
plural flies
[count] a small insect that has two wings
a hook that is designed to look like an insect and that is used for catching fish
drop like flies
also die like flies
informal
If people or animals are dropping/dying like flies, they are dropping or dying very quickly in large numbers.
fly in the ointment
someone or something that causes problems
fly on the wall
someone who secretly watches or listens to other people
no flies on
chiefly Brit informal
If there are no flies on you, you are a smart person who is quick to undertand things and not easily fooled.
wouldn't hurt a fly
Someone who wouldn't hurt a fly is too gentle to want to hurt anyone.
noun
plural flies
[count] an opening in a piece of clothing (such as a pair of trousers, shorts, or a skirt) that is hidden by a fold of cloth and that is closed by a zipper or a row of buttons
see color picture
baseball :fly ball
on the fly
quickly and often without preparation
through the air :without hitting the ground
while something else is also being done on a computer