flap

US /flæp/
UK /flæp/
"flap" picture
1.

a piece of something thin, such as cloth, paper, or metal, that is attached to a main part along one side but is free on the other sides, and can be lifted up or folded

:
•
He lifted the tent flap and peered inside.
•
The envelope had a sticky flap.
2.

a state of agitation or excitement

:
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The news put everyone in a terrible flap.
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There was a big flap over the new policy.
:
agitationcommotionfrenzypanicturmoil
1.

(of a bird) move (its wings) up and down

:
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The bird began to flap its wings.
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The flag flapped in the wind.
:
flutterwavebeatoscillatevibrate
2.

to move or cause to move with a quick, light, irregular motion

:
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The loose shutter was flapping in the wind.
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Don't flap, everything will be fine.
:
flutterflickeragitatepanicfret