Triathlon (noun)

An athletic event that consists of three different disciplines, typically swimming, cycling, and running.

Origin:

From french triathlon, from greek τρεῖς (treîs, "three") + ἆθλος (âthlos, "contest, competition").

Examples:

1. He trained for months to compete in the triathlon.
2. The triathlon was a grueling test of endurance.
3. The triathlon is a multi-sport event that consists of swimming, cycling, and running.
4. The triathlon is a popular event with athletes and enthusiasts.
5. He won the triathlon by a margin of only a few seconds.