One way to use the word "flap" is as a verb. Animals that fly, especially birds, flap their wings in order to move through the air.

  • A bird flies when it flaps its wings.
  • In the evening, you can see bats quickly flapping their wings.

When the word "flap" is used as a noun, it refers to that part of a box or an envelope that folds and seals whatever is inside.

  • The flaps on a box look a little like wings.
  • He’s licking the seal on the flap of the envelope.

There are some other ways to use the word "flap."


A flag flaps in the wind. This flag is flapping in the wind.


Pancakes are sometimes referred to as flapjacks. He’s sitting behind a stack of flapjacks.

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August 8, 2019