Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “triathlon”

triathlon

noun [C] uk   /traɪˈæθ.lɒn/ us    /-lɑːn/
a competition in which the people competing must swim, ride a bicycle, and run particular distances without stopping between eventsAthletics
triathlete
noun [C] uk   us  
someone who competes in a triathlonCompetitors and participants in sports and gamesAthletics
(Definition of triathlon from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of triathlon?
Add Cambridge dictionaries to your browser to your website

Definitions of “triathlon” in other dictionaries

Translations of “triathlon”

Word of the Day

throw

to send something through the air with force, especially by a sudden movement of the arm

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More