Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “marathon”

See all translations

marathon

noun [C] uk   /ˈmær.ə.θən/ us    /-θɑːn/

marathon noun [C] (RACE)

B2 a running race of slightly over 26 miles (42.195 kilometres): the London/New York marathon She did/ran her first marathon in just under three hours.
More examples

marathon noun [C] (LONG ACTIVITY)

an activity that takes a long time and makes you very tired: The election broadcast, a nine-hour marathon, lasts until seven o'clock in the morning.

marathon

adjective [before noun] uk   /ˈmær.ə.θən/ us    /-θɑːn/

marathon adjective [before noun] (RACE)

related to marathons (= running races): a marathon runner

marathon adjective [before noun] (LONG TIME)

used to describe something that takes a very long time and makes you very tired: I had a marathon session marking 55 tests yesterday.
(Definition of marathon from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of marathon?
Add Cambridge dictionaries to your browser to your website

More meanings of “marathon”

Definitions of “marathon” in other dictionaries

Word of the Day

ellipsis

a situation in which words are left out of a sentence but the sentence can still be understood

Word of the Day

Euphemisms (Words used to Avoid Offending People)

by Kate Woodford,
March 04, 2015
​​​ We recently looked at the language that we use to describe lies and lying. One area of lying that we considered was ‘being slightly dishonest, or not speaking the complete truth’. One reason for not speaking the complete truth is to avoid saying something that might upset or offend people. Words and

Read More 

snapchat verb

March 02, 2015
to send someone a message using the photomessaging application Snapchat We used to have a thing until he got a girlfriend. now

Read More