Anything broad and flexible that hangs loose, or that is attached by one side or end and is easily moved. / A hinged leaf.

(transitive) To move (something broad and loose) up and down. / (intransitive) To move loosely back and forth.

that flaps or flap

An instance where one flaps.

present participle of flap

plural of flap

Third-person singular simple present indicative form of flap

simple past tense and past participle of flap

Fitted with a flap.

plural of flapping