1
: operated or adapted for operation at high speed
2
: relating to the production of short-exposure photographs of rapidly moving objects or events of short duration

Examples of high-speed in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In July, the federal government revoked $4 billion previously earmarked for California's high-speed rail system. Theo Burman, MSNBC Newsweek, 22 July 2025 Why The Northern Lights Are Being Seen In The U.S. The imminent potential display of aurora is due to a high-speed stream of solar wind coming from a coronal hole — a gap in the sun’s outer atmosphere, its corona, where solar wind escapes more freely into space. Jamie Carter, Forbes.com, 22 July 2025 The California high-speed rail project, approved by voters in 2008, aims to connect San Francisco and Los Angeles with nearly 800 miles of track around the state. Amelia Wu july 21, Sacbee.com, 21 July 2025 Three months before the fatal high-speed Saturday morning smash up at the Bowery and Canal St., the 23-year-old driver allegedly clipped a woman stepping out of an Uber in Brooklyn, causing serious injuries, and fled, sources said. Rebecca White, New York Daily News, 20 July 2025 See All Example Sentences for high-speed

Word History

First Known Use

1844, in the meaning defined at sense 1

Time Traveler
The first known use of high-speed was in 1844

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Cite this Entry

“High-speed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/high-speed. Accessed 29 Jul. 2025.

Kids Definition

high-speed

adjective
-ˈspēd
: going or made for operation at high speed

More from Merriam-Webster on high-speed

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