triathlon

noun

tri·​ath·​lon trī-ˈath-lən How to pronounce triathlon (audio)
-ˌlän,
 nonstandard  -ˈa-thə-
: an athletic contest that is a long-distance race consisting of three phases (such as swimming, bicycling, and running)

Examples of triathlon 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.
But in the 5K road race and sprint triathlon, Van Rompaye edged the German out for gold with Sprink taking silver and bronze, respectively. Eryn Mathewson, CNN Money, 17 Aug. 2025 What to know: Jack's a triathlon runner, cancer survivor, and a co-founder of the popular Picnic app. Allison Degrushe Published, EW.com, 13 Aug. 2025 The biennial event takes place July 24 to Aug. 4 and includes athletes competing in sports such as pickleball, track and field, basketball, table tennis, triathlon and more. Kirby Adams, The Courier-Journal, 9 July 2025 That category includes tennis, golf, swimming, track and field, wrestling, gymnastics, skiing, fencing, women’s bowling, indoor and outdoor cross country, women’s triathlon, women’s equestrian, rifle and skiing. Michael McCann, Sportico.com, 30 July 2025 See All Example Sentences for triathlon

Word History

Etymology

tri- + -athlon (as in decathlon)

First Known Use

1924, in the meaning defined above

Time Traveler
The first known use of triathlon was in 1924

Browse Nearby Words

Cite this Entry

“Triathlon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/triathlon. Accessed 22 Aug. 2025.

Kids Definition

triathlon

noun
tri·​ath·​lon ˌtrī-ˈath-ˌlän How to pronounce triathlon (audio)
: an athletic contest that is a long-distance race consisting of three phases (as swimming, bicycling, and running)

More from Merriam-Webster on triathlon

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