tri·​ath·​lete | \ trī-ˈath-ˌlēt How to pronounce triathlete (audio) , nonstandard -ˈa-thə- \

Definition of triathlete

: an athlete who competes in a triathlon

Examples of triathlete in a Sentence

Recent Examples on the Web Strehlow has continued winning and has seen success early in her career as a triathlete. Ben Schultz, Journal Sentinel, 6 Aug. 2022 The four women are Brooke Downes, an Olympic hopeful; Adrienne Smith, an Ironman triathlete, yoga instructor, and mother; Libby Costello, a UCLA rowing alum; and Sophia Denison-Johnston, aka DJ, another Olympic hopeful. Sarah Spellings, Vogue, 25 July 2022 Matt is an Ironman-level triathlete and Teri loves to hike and run. Matt Wake |, al, 20 July 2022 Jim Gourley, a triathlete with an aerospace engineering degree from the U.S. Air Force Academy, tackles this topic in his book Faster: Demystifying the Science of Triathlon Speed. Amanda Macmillan, Outside Online, 13 Mar. 2015 Chris Mosier, a transgender male triathlete and activist, agrees that sports influence how transgender people are treated in other areas of life. David Wharton, Los Angeles Times, 20 June 2022 The sun broke through clouds on his third loop, and his pace held steady as the sky brightened and the miles piled up, much to the concern of Halovatch and his wife, Kate Pallardy, an elite distance runner and triathlete. New York Times, 11 Apr. 2022 Consider Morgan Pearson, an American professional triathlete who won the 2020 Michigan Pro Half Marathon against a field of elite runners, recording a superb time of 1:02:15 on a challenging course. Matt Fitzgerald, Outside Online, 15 Mar. 2021 The story featured an amateur triathlete in her late-40s who had not missed a single day of training due to injury in the past seven years. Julie Thomas, Forbes, 6 June 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'triathlete.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of triathlete

1982, in the meaning defined above

Buying Guide

Passionate about fitness and wellness tracking? The Reviews team conducted an honest review of the Oura Ring.

Learn More About triathlete

Time Traveler for triathlete

Time Traveler

The first known use of triathlete was in 1982

See more words from the same year

Dictionary Entries Near triathlete




See More Nearby Entries 

Statistics for triathlete

Last Updated

11 Aug 2022

Cite this Entry

“Triathlete.” Dictionary, Merriam-Webster, Accessed 15 Aug. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!