triathlete

/traɪˈæθliːt/
noun
  1. A person who competes in a triathlon, an athletic event that combines swimming, cycling, and running.
    • The triathlete trained every day to prepare for the Ironman competition.
    • Becoming a professional triathlete requires incredible endurance and discipline.
    • My neighbor is a dedicated triathlete who wakes up at 5 a.m. to swim.
Synonyms
What does "triathlete" mean? | whatsthatwordmean | whatsthatwordmean