Topic: TRANSPORT
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| Date: | 1500-1600 |
| Language: | Latin |
| Origin: | , past participle of accelerare, from ad- 'to' + celer 'fast' |
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ac‧cel‧e‧rate
1 [intransitive and transitive] if a process accelerates or if something accelerates it, it happens faster than usual or sooner than you expect : 
measures to accelerate the rate of economic growth
measures to accelerate the rate of economic growth2 [intransitive]TT if a vehicle or someone who is driving it accelerates, it starts to go faster [≠ decelerate]: The car accelerated smoothly away.
The car accelerated smoothly away.