American Dictionary

Define dictionary terms easily in our powerful online English dictionary.

Searching for...

No matching words found

Try a different search term or browse the dictionary

Definition marathon in American English

marathon noun

[countable] noun
/ˈmerəˌθɑn/
1

a race in which people run on roads over a distance of 42 kilometers or about 26 miles

Synonyms and related words
2

an activity that takes a long time to complete and needs a lot of energy and determination

Example

The meeting turned out to be a bit of a marathon.

Example

marathon talks/negotiations

Synonyms and related words
Definition marathon in American English