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Synonyms

accelerate

American

[ak-sel-uh-reyt] / ækˈsɛl əˌreɪt /

verb (used with object)

to cause faster or greater activity, development, progress, advancement, etc., in.

to accelerate economic growth.
to hasten the occurrence of.

to accelerate the fall of a government.
Mechanics. to change the velocity of (a body) or the rate of (motion); cause to undergo acceleration.
to reduce the time required for (a course of study) by intensifying the work, eliminating detail, etc.

verb (used without object)

to move or go faster; increase in speed.
to progress or develop faster.

accelerate British

/ ækˈsɛləˌreɪt /

verb

to go, occur, or cause to go or occur more quickly; speed up
(tr) to cause to happen sooner than expected
(tr) to increase the velocity of (a body, reaction, etc); cause acceleration

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Conjugated Forms

Present

Past

Future

Etymology

Origin of accelerate

First recorded in 1515–25; from Latin accelerātus “sped up,” past participle of accelerāre “to speed up,” from ac- ac- + celerāre “to hasten, hurry” (from celer “swift”)

Explanation

Accelerate means to speed up. A car accelerates when you step on the gas. You can accelerate the process of getting a visa if you happen to know someone who works in the consulate. The fastest Amtrak trains are called the Acela line, a made-up word intended to suggest accelerate and therefore communicate that these trains are fast. If you are standing close to one when it zooms by, you may find yourself having an accelerated heart rate — they move pretty fast!

Keep Reading on Vocabulary.com

Vocabulary lists containing accelerate

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Bank of Japan is widely expected to raise interest rates this month to mitigate the burden of rising costs as policymakers grow more worried that the fallout from the conflict will accelerate underlying inflation.

From The Wall Street Journal • Jun. 8, 2026

While Kim Jong Il visited China repeatedly and relied on Beijing's backing, his son moved quickly to accelerate North Korea's nuclear programme.

From BBC • Jun. 7, 2026

They say that Kakao has partnered with OpenAI and Google to accelerate the rollout of agentic AI services.

From The Wall Street Journal • Jun. 5, 2026

And as price pressures have started to accelerate once again, bitcoin is proving that it isn’t much of an inflation hedge, despite its reputation.

From MarketWatch • Jun. 4, 2026

In the center of the track, Azucar began to uncurl his long legs and accelerate, grinding away at the lead.

From "Seabiscuit: An American Legend" by Laura Hillenbrand

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023