triathlon
noun
tri·ath·lon
trī-ˈath-lən 
-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
For most people—regardless of age—so much as attempting a triathlon is a daunting prospect, let alone actually completing one.
—
Caroline Tien, SELF, 29 Oct. 2025
My friend Chuck was adamantly opposed to the sport of triathlon.
—Théoden Janes, Charlotte Observer, 26 Oct. 2025
Ten competed primarily in ultramarathons and several others specialized in Ironmans, multiday triathlons and cycling races.
—Jason Dinh, Scientific American, 20 Oct. 2025
What about true super-elites like Kilian Jornet and triathlon star Kristian Blummenfelt?
—Alex Hutchinson, Outside, 20 Oct. 2025
See All Example Sentences for triathlon
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.
Caroline Tien, SELF, 29 Oct. 2025
My friend Chuck was adamantly opposed to the sport of triathlon.
—Théoden Janes, Charlotte Observer, 26 Oct. 2025
Ten competed primarily in ultramarathons and several others specialized in Ironmans, multiday triathlons and cycling races.
—Jason Dinh, Scientific American, 20 Oct. 2025
What about true super-elites like Kilian Jornet and triathlon star Kristian Blummenfelt?
—Alex Hutchinson, Outside, 20 Oct. 2025
See All Example Sentences for triathlon
Cite this Entry
“Triathlon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/triathlon. Accessed 15 Nov. 2025.
Copy CitationKids Definition
triathlon
noun
tri·ath·lon
ˌtrī-ˈath-ˌlän
: an athletic contest that is a long-distance race consisting of three phases (as swimming, bicycling, and running)
Love words? Need even more definitions?
Merriam-Webster unabridged
Share