(noun, verb)


1. any long and arduous undertaking

Definition categories: act, labor, project, task, undertaking

2. a footrace of 26 miles 385 yards

Definition categories: event, footrace, run

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

Definition categories: act

Sentences with marathon as a noun:

- He had a cleaning marathon the night before his girlfriend came over.


1. To run a marathon.

2. (informal, transitive) To watch or read a large number of instalments of (a film, book, TV series, etc.) in one sitting.

- We're going to marathon Star Trek next weekend.