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.
Brightline West, the private high-speed rail line planned for the I-15 median, is facing financial challenges which may prevent it from being completed. Marc Joffe, Oc Register, 16 Oct. 2025 The scientists could even watch the process happen instantly thanks to their special, high-speed microscopes. Mrigakshi Dixit, Interesting Engineering, 15 Oct. 2025 Newsom and lawmakers earmarked $1 billion a year of that for the state’s beleaguered high-speed rail project. Paul Rogers, Mercury News, 15 Oct. 2025 In addition to an aerial display from Patan, the event played host to the first four-aircraft formation dance and a high-speed race around the company's signature pylons. New Atlas, 14 Oct. 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 21 Oct. 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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