English Reference
noun · verb

marathon

n. · v.
US /ˈmɛɹəˌθɑn/ UK /mˈæɹəθən/ marathon UK spelling marathons

  1. 01 B1 Intermediate Sport

    n.a long-distance running race that is exactly 42.195 kilometres (about 26 miles) long.

    n.a long-distance road race with an official distance of 42.195 kilometres.

    Simple

    She trained for six months before she finally ran her first marathon.

    In context

    Elite runners from across the globe gathered for the Boston Marathon, hoping to break the course record under ideal weather conditions.

    long distance race
  2. 02 B2 Upper Intermediate

    n.any activity that lasts a long time and needs a lot of energy or patience.

    n.any contest, event, or task that is notably long in duration and requires exceptional endurance.

    Simple

    The final negotiation was a ten-hour marathon that left everyone exhausted.

    In context

    The coding session turned into a forty-eight-hour marathon as the developers scrambled to patch the security vulnerability before the product launch.

    endurance testslog
  3. 03 C1 Advanced Informal

    v.to watch many episodes of a TV show or several movies in a row.

    v.to consume a large volume of media content, such as a television series or film franchise, in a single continuous session.

    Simple

    We decided to marathon the entire trilogy on Saturday afternoon.

    In context

    During the holiday break, they opted to marathon the complete series, finishing all five seasons in less than a week.

    Usage

    Often used transitively with a TV show or film series as the direct object.

    binge watch

Usage marathons in days

The singer-songwriter’s performance at the Old Bookbinders is part of a marathon effort to play a gig every day this year.

The Guardian· 21 Aug 2026

But after running the New York marathon, she got injured.

The Guardian· 18 Aug 2026

From Ancient Greek Μαραθών (Marathṓn). Doublet of marathon.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Ancient Greek Μαραθών
Level B2 · Upper Intermediate
Frequency Common
Updated