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Synonyms

sped

American  
[sped] / spɛd /

verb

  1. a simple past tense and past participle of speed.


sped British  
/ spɛd /

verb

  1. a past tense and past participle of speed

"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

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 rhenium component helped hydrogen attach to and release from the catalyst surface, while the molybdenum sped up the splitting of water in the alkaline electrolyte.

From Science Daily • May 18, 2026

They jumped backwards out of the way as the car hurtled towards them and then the car sped off.

From BBC • May 7, 2026

Monthly price increases as measured by the Fed’s preferred gauge sped up in February, the Commerce Department said Thursday, showing that inflation remained persistent even before the Iran war began last month.

From The Wall Street Journal • Apr. 9, 2026

The Apollo vessels were cone-shaped to maximize stability as the craft sped back to Earth through the atmosphere.

From Barron's • Apr. 4, 2026

As they sped up the road he wondered how fast a leopard could run.

From "Storm Runners" by Roland Smith

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