MOVE THROUGH AIR[I]›When a bird, insect, aircraft, etc flies, it moves through the air: The robin flew up into a tree.The plane was flying at 5000 feet.
TRAVEL[I]›to travel through the air in an aircraft: I'm flying to Delhi tomorrow.
CONTROL AIRCRAFT[I, T]›to control an aircraft: She learned to fly at the age of 18.
TAKE/SEND[T]›to take or send people or goods somewhere by aircraft: [often passive]She was flown to hospital by helicopter.
fly along/down/past, etc›to move somewhere very quickly: He grabbed some clothes and flew down the stairs.
send sb/sth flying›to cause someone or something to move through the air suddenly, usually in an accident
LEAVE[I]UK›to leave suddenly: I must fly - I'm late for work.
let fly (at sb/sth)mainly UKinformal›to start shouting angrily or attacking someone