HIIT

abbreviation or noun

ˈhit How to pronounce HIIT (audio)
: a form of interval training that alternates very brief periods (such as 20 to 40 seconds) of intense exercise at maximum effort with periods (such as 15 to 30 seconds) of less intense exercise : high-intensity interval training
HIIT, or high-intensity interval training, is a training technique that requires you to perform quick, intense bursts of exercise, followed by short and active recovery periods.—Sudhakar Jha

Examples of HIIT 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.
The Edge can display in-workout metrics and pace targets, heart rate zones for HIIT intervals, and other live figures to show you how your training is going. — New Atlas, 13 Oct. 2026 For people who are already consistently working out, this can look like a two- or three-minute burner at the end of a strength session or a dedicated 20- to 30-minute HIIT session two to three days a week. — Danielle Zickl, HEALTH, 10 Oct. 2026 At a high level, the strongest and most consistent evidence for reducing inflammation is for aerobic exercise, resistance training, and high-intensity interval training (HIIT). — Teresa Maalouf, Verywell Health, 18 Sep. 2026 The newest campus parties trade the keg for wellness activities like group runs, cold plunges, HIIT, yoga, Pilates and stretching. — Ashley Lynch, Kansas City Star, 17 Sep. 2026 See All Example Sentences for HIIT

Word History

First Known Use

1994, in the meaning defined above

Time Traveler
The first known use of HIIT was in 1994

Browse Nearby Words

hi-hat
HIIT
Hiiumaa
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Cite this Entry

“HIIT.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/HIIT. Accessed 19 Oct. 2026.

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