HIIT
abbreviation or noun
: 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
Sudhakar JhaExamples of HIIT in a Sentence
Recent Examples on the Web
Large gym chains now offer hot versions of HIIT, strength training, and pilates classes.
—Lauren Leffer, Popular Science, 4 Sep. 2025
High-Intensity Interval Training (HIIT) HIIT burns belly fat by creating a huge calorie burn in less time, said Schlottman.
—Sherri Gordon, Health, 28 Aug. 2025
The day-long event featured a HIIT class with Motion Fitness Group trainer Scott Perry, and a Breath Work Meditation Class led by Abbie Cowley and Portable Sauna Sessions by Power Coaching.
—Nadja Sayej, Forbes.com, 25 Aug. 2025
My Align Pants held up through hundreds of HIIT workouts and runs in college, with buttery-soft material that stays in place even during the sweatiest days.
—Anne Taylor, Travel + Leisure, 24 Aug. 2025
See All Example Sentences for HIIT
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Lauren Leffer, Popular Science, 4 Sep. 2025
High-Intensity Interval Training (HIIT) HIIT burns belly fat by creating a huge calorie burn in less time, said Schlottman.
—Sherri Gordon, Health, 28 Aug. 2025
The day-long event featured a HIIT class with Motion Fitness Group trainer Scott Perry, and a Breath Work Meditation Class led by Abbie Cowley and Portable Sauna Sessions by Power Coaching.
—Nadja Sayej, Forbes.com, 25 Aug. 2025
My Align Pants held up through hundreds of HIIT workouts and runs in college, with buttery-soft material that stays in place even during the sweatiest days.
—Anne Taylor, Travel + Leisure, 24 Aug. 2025
See All Example Sentences for HIIT
Cite this Entry
“HIIT.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/HIIT. Accessed 16 Sep. 2025.
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