flap

any broad thin and limber covering attached at one edge; hangs loose or projects freely

“he wrote on the flap of the envelope”

an excited state of agitation

“he was in a dither”

“there was a terrible flap about the theft”

the motion made by flapping up and down

a movable piece of tissue partly connected to the body

a movable airfoil that is part of an aircraft wing; used to increase lift or drag

move in a wavy pattern or with a rising and falling motion

“The curtains undulated”

“the waves rolled towards the beach”

to flutter noisily when moved by the wind

“flags flapped in the strong wind”

move with a thrashing motion

“The bird flapped its wings”

“The eagle beat its wings and soared high into the sky”

move with a flapping motion

“The bird's wings were flapping”

make a fuss; be agitated

pronounce with a flap, of alveolar sounds