English Reference

Word

runs

US/ˈɹənz/

UK/ɹˈʌnz/

Definition

n. a slang word for when you have to go to the toilet very often because you are sick.

n. a slang term for diarrhea. Usually used with 'the' and treated as a plural noun.

Examples

“I think the spicy food gave me the runs.”

“He had to cancel his presentation at the last minute because he woke up with a bad case of the runs.”

“Travelers often experience the runs when their digestive systems encounter unfamiliar bacteria in local water supplies, a condition colloquially known by various regional nicknames.”

Examples

simple

“I think the spicy food gave me the runs.”

contextual

“He had to cancel his presentation at the last minute because he woke up with a bad case of the runs.”

complex

“Travelers often experience the runs when their digestive systems encounter unfamiliar bacteria in local water supplies, a condition colloquially known by various regional nicknames.”

Usage

Always used with the definite article as 'the runs'.

Teaching tip

This is a very common but informal term; students should use 'diarrhea' in medical or formal contexts.

Real-World Examples

“The difficulty the book runs into is that there is only so much to unpack.”
The Guardian · 14 Aug 2026
“The service runs under a non-privileged service account.”
Ars Technica · 23 Jul 2026

Etymology

Usually said to allude to the fact that an affected person is frequently running to get to a toilet immediately. Sometimes said to allude to the runniness (runny consistency) of the stool.

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

Synonyms

Antonyms

Collocations

runs along

This entry

Level
B2 · Upper Intermediate
Frequency
Very common
Updated
Register
Slang, Informal

Scan code

englishreference.com/q/runs

English Reference