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
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The federal government has pulled funds for California’s high-speed rail, but the project may have an unlikely savior: AI data centers. Alex Knapp, Forbes.com, 15 Aug. 2025 Typically, some of this material is ejected in high-speed jets as the star spins, helping to shape the system. Sharmila Kuthunur, Space.com, 15 Aug. 2025 The Trump administration is reopening a federal program to fund the installation of high-speed EV chargers along freeways nationwide, after a six-month freeze in funds and a legal battle with states. Camila Domonoske, NPR, 15 Aug. 2025 Whether California’s high-speed rail follows that path — or becomes a cautionary tale — remains to be seen. Tina Li, Sacbee.com, 14 Aug. 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 20 Aug. 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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