speed

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speed is one of the 1000 most common headwords.
speed

Pronunciation[change]

Verb[change]

Plain form
speed

Third person singular
speeds

Simple past
sped

Past participle
sped

Present participle
speeding

  1. (intransitive) When you speed, you move or do something very fast.
    The child speeds through his studies so he can go out and play.
    The plane sped through the air.
  2. When you speed in a car, you drive faster than the law allows.
    If you speed in your car, you might have an accident.

Noun[change]

Singular
speed

Plural
speeds

  1. The speed of something is how fast it moves.
    sound moves at a very high speed.