marathon

noun

A cross-country footrace of 26 miles, 385 yards (42.195 kilometers).

noun

A long-distance race other than a footrace.

noun

A contest of endurance.

noun

An event or activity that requires prolonged effort, endurance, or attention.

noun

A footrace of 26 miles 385 yards.

noun

Any long and arduous undertaking, straining the endurance of the participants.

noun

a battle in 490 BC in which the Athenians and their allies defeated the Persians.

noun

A 42.195 kilometre (26 mile 385 yard) road race.