Flap Definition

flăp
flapped, flapping, flaps
noun
flaps
Anything flat and broad that is attached at one end and hangs loose or covers an opening.
The flap of a pocket.
Webster's New World
Either of the two parts of a book's dust jacket that fold inside the book's covers, typically containing a summary of the book's contents and a brief biographical sketch of its author.
Webster's New World
The motion or slapping sound of a swinging flap.
The flap of an awning in the breeze.
Webster's New World
A pilot-controlled airfoil; esp., a section hinged to the trailing edge of a wing between the aileron and the fuselage, usually used to increase lift or drag.
Webster's New World
A state of excitement, controversy, or agitation.
Webster's New World
Antonyms:
verb
flapped, flapping, flaps
To move (wings or arms, for example) up and down.
American Heritage
To strike with something flat and broad; slap.
Webster's New World
To move back and forth or up and down as in beating the air, usually with some noise.
A bird flapping its wings.
Webster's New World
To cause to move or sway with a fluttering or waving motion.
The wind is flapping the tent fly.
American Heritage
To throw, fling, slam, etc. abruptly or noisily.
Webster's New World

Other Word Forms of Flap

Noun

Singular:
flap
Plural:
flaps

Origin of Flap

  • Middle English flappe slap

    From American Heritage Dictionary of the English Language, 5th Edition

  • Middle English flappe (“slap”)

    From Wiktionary

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