English dictionary

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English verb: speed up

1. speed up (change) move faster

SamplesThe car accelerated.

ExamplesThese cars won't speed up

Synonymsaccelerate, quicken, speed

Pattern of useSomething ----s.
Somebody ----s.
Somebody ----s something.
Something ----s something

Broader (hypernym)deepen, intensify

Narrower (hyponym)brisk, brisk up, brisken

Antonymsdecelerate, slow, slow down, slow up, retard

2. speed up (change) cause to move faster

SamplesHe accelerated the car.

Synonymsaccelerate, speed

Pattern of useSomebody ----s something.
Somebody ----s somebody.
Something ----s somebody.
Something ----s something

Broader (hypernym)alter, change, modify

Antonymsdecelerate, slow down

Based on WordNet 3.0 copyright © Princeton University.
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