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• marathon
  marathon

  noun

  a footrace or wheelchair race over a course measuring 26 miles 385 yards (42 kilometers 195 meters).
• Marathon
  Marathon

  noun

  a plain in SE Greece, in Attica: the Athenians defeated the Persians here 490 b.c.

marathon

¹ American  

[mar-uh-thon, -thuhn] / ˈmær əˌθɒn, -θən /

noun

1. a footrace or wheelchair race over a course measuring 26 miles 385 yards (42 kilometers 195 meters).

2. any long-distance race.

3. any contest, event, or the like, of great, or greater than normal, length or duration or requiring exceptional endurance.

   a dance marathon;

   a sales marathon.

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Marathon ² American  

[mar-uh-thon] / ˈmær əˌθɒn /

noun

1. a plain in SE Greece, in Attica: the Athenians defeated the Persians here 490 b.c.

2. an ancient village that is near this plain.

3. Classical Mythology. a son of Epopeus and the father of Corinthus.

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marathon ¹ British  

/ ˈmærəθən /

noun

1. a race on foot of 26 miles 385 yards (42.195 kilometres): an event in the modern Olympics

2. 1. any long or arduous task, assignment, etc

   2. ( as modifier )

      a marathon effort

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Marathon ² British  

/ ˈmærəθən /

noun

1. a plain in Attica northeast of Athens: site of a victory of the Athenians and Plataeans over the Persians (490 _bc )

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Usage

What does marathon mean? A marathon is a 26. 22-mile (42. 2-kilometer) long-distance race. Technically, the exact length of a marathon is 26 miles 385 yards (42 kilometers 195 meters). But the length is mostly commonly stated as 26. 2 miles. Marathons are most commonly running races, but some people complete marathons in wheelchairs. Marathon courses are typically on roadways, often those in or around a city. The marathon is an event in the Summer Olympic Games. Major marathons are also held internationally in many major cities. Prominent events include the Boston Marathon, the New York Marathon, and the London Marathon. A marathon runner can be called a marathoner. A running race of 13. 1 miles is known as a half-marathon. The term ultramarathon refers to a race of 50 miles or more. The word marathon is also often used in a more general way to refer to a contest or event that takes a particularly long time and requires endurance, such as a dance marathon. A movie marathon involves several movies played consecutively. Sometimes, the word is used in a more figurative way to refer to a task or undertaking that takes a long time and requires patience, as in Be patient—learning karate is a marathon, not a sprint. Example: I’ve always wanted to run a marathon, so I started training today.

Etymology

Origin of marathon

First recorded in 1895–1900; allusion to Pheidippides' 26-mile (42-kilometer) run from Marathon to Athens to carry news of the Greek victory over the Persians in 490 b.c.

Explanation

A marathon is a very long race that runners compete in — a 26 mile, 385 yard race, to be exact. When you're training for a marathon, you'll gradually increase the distance of your daily runs. The word marathon has ancient legendary roots: it comes from a long journey taken on foot by the Greek messenger Pheidippides, from the battlefields of Marathon to Athens in 490 BCE. As the story goes, he ran without stopping, announced to the citizens of Athens, "We have won," and promptly died. The marathon was one of the original Olympics events, and its difficulty inspired the figurative meaning of "any difficult undertaking."

Example Sentences

Now comes the hard part: a regulatory marathon.

From The Wall Street Journal • May 19, 2026

The ranks of America’s marathon commuters have grown since the pandemic, with many workers moving farther away from city centers for cheaper housing and more space.

From The Wall Street Journal • May 6, 2026

The 2026 marathon had a record 59,830 finishers and was the biggest annual one-day fundraising event in the world.

From BBC • May 5, 2026

Mac has witnessed many changes to the marathon over the years, from the landscape around Canary Wharf, to the growing number of competitors and spectators.

From BBC • May 3, 2026

What about those marathon readings of Goodnight Moon?

From "Freakonomics: A Rogue Economist Explores the Hidden Side of Everything" by Steven D. Levitt