2 entries found for flap.
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Main Entry: 1flap
Pronunciation: flap
Function: noun 1: 1SLAP 1 2: a broad, limber, or flat piece that hangs loose (as on a pocket or envelope) 3: the motion or sound of a flap 4: a movable part of an airplane wing that is attached to the trailing edge of the wing and that is used to increase lift