speed

Pronunciation

• IPA: /spiːd/

• Audio (US)

  (file)

Verb

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

Singular speed

Plural speeds

1. The speed of something is how fast it moves.

   sound moves at a very high speed.