Meaning of FLAP in English

FLAP

I. flap 1 /flæp/ BrE AmE noun

1 . FLAT PIECE OF SOMETHING [countable] a thin flat piece of cloth, paper, skin etc that is fixed by one edge to a surface, which you can lift up easily:

the tent flap

A loose flap of skin covered the wound.

⇨ ↑ cat flap

2 . MOVEMENT [singular] the noisy movement of something such as cloth in the air:

the flap of the sails

3 . EXCITEMENT/WORRY a flap informal a situation in which people feel very excited or worried about something

be in a flap

Rafi’s in a bit of a flap over the wedding plans.

⇨ ↑ unflappable

4 . PART OF AIRCRAFT [countable] a part of the wing of an aircraft that can be raised or lowered to help the aircraft go up or down

II. flap 2 BrE AmE verb ( past tense and past participle flapped , present participle flapping )

[ Date: 1300-1400 ; Origin: Perhaps from the sound ]

1 . [intransitive and transitive] if a bird flaps its wings, it moves them up and down in order to fly

2 . [intransitive and transitive] to move quickly up and down or from side to side, often making a noise:

The flags were flapping in the breeze.

Flap your arms to keep warm.

3 . [intransitive] British English informal to behave in an excited or nervous way:

There’s no need to flap!

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.