Dictionary.com
Thesaurus.com
Synonyms

loo

1 American  
[loo] / lu /

noun

loos plural
  1. a card game in which forfeits are paid into a pool.

  2. the forfeit or sum paid into the pool.

  3. the fact of being looed.


verb (used with object)

looed, looing
  1. to subject to a forfeit at loo.

loo 2 American  
[loo] / lu /

noun

British Informal.
loos plural
  1. toilet.


loo 3 American  
[loo] / lu /

verb (used with or without object)

Chiefly Northern U.S.
loos plural
  1. low.


loo 4 American  
[loo] / lu /

noun

loos plural
  1. Scots. love.


loo 1 British  
/ luː /

noun

  1. a gambling card game

  2. a stake used in this game

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

loo 2 British  
/ luː /

noun

  1. an informal word for lavatory

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

loo 3 British  
/ luː /

verb

  1. a variant spelling of lou

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of loo1

First recorded in 1665–75; short for lanterloo, from Dutch lanterlu, from French lantur(e)lu, a special use of a meaningless refrain of an old song

Origin of loo2

First recorded in 1935–40; of uncertain origin; perhaps from French lieux (d'aisances) “latrines, toilets,” literally, “places of ease”; perhaps a pun on the place name Waterloo, based on water closet

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Ahead of the sale, Sotheby’s expert David Galperin said the house will install the golden loo in a fourth-floor bathroom within its new Manhattan headquarters.

From The Wall Street Journal • Oct. 31, 2025

"It was bonkers. It was hard to go to the loo," he told BBC 5Live Breakfast, "but it was a good evening."

From BBC • Sep. 15, 2025

The purported health risks of extended loo time have long circulated through doctors’ offices and news articles.

From Slate • Sep. 12, 2025

But those with a penchant for leisurely loo visits should take note: The Thrones come with a time limit.

From Los Angeles Times • May 6, 2025

“Nah, I have to fix the Meagers’ loo.

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "loo" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com