marathon

noun2

1. •
   A 42.195-kilometre (26-mile-385-yard) road race.
2. •
   (figurative) Any extended or sustained activity.

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

verb2

1. •
   To run a marathon.

   • In less than two years, they and their family and friends have skydived, marathoned, tray-baked and dinner-danced their way to £130,000 for Duchenne research through their help4harry campaign. — 2015
2. •
   (informal) 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.

noun2

1. •
   A town in Attica, Greece, the site of the victory in 490 BC of heavily outnumbered Athenians against Persians.
2. •
   Former name of Snickers (“chocolate bar brand”).