Meanings
loo1
plural loos
- CommonwealthIrelandUKA lavatory: a room used for urination and defecation.
Ensure that the tents are well-sited and clean, rubbish bins empty, and that the loos have toilet paper.
2006, Garth Thompson et al., The Guide′s Guide to Guiding, 3rd edition, page 1601 more example
I suppose it is unreal because we have been expecting it [sc. World War II] for so long now, and have known that it must be got over before we can go on with our lives. Like in the night when you want to go to the loo and it is miles away down a freezing cold passage and yet you know you have to go down that passage before you can be happy and sleep again.
1940, Nancy Mitford, chapter II, in Pigeon Pie, page 27Synonyms: bathroom
- CommonwealthIrelandUKA toilet: a fixture used for urination and defecation.
Waterless urinals are a great way of keeping the guys out of the cubicle toilets, keeping the urine separated from the solid waste (when using composting loos) and reducing water consumption if you have flush loos.
2010, Meegan Jones, Sustainable Event Management, page 2061 more example
The lack of running water in rural areas often makes Western-style loos hygienic disasters. Suddenly the noncontact squat toilet doesn′t look like such a bad option any more (as long as you roll up your trouser legs).
2009, Katharina Kane, Lonely Planet: The Gambia and Senegal, page 275Synonyms: toilet
loo2
alternative 'loo · alternative lo · alternative lowe
- A cry to urge on hunting dogs.
Edg. Pilicock sate on pelicocks hill, a lo lo lo.
c. 1603–1606, William Shakespeare, “The Tragedie of King Lear”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act I, scene xi]
present singular third person loos · participle present looing · participle past looed · past looed
loo3
alternative lu · alternative liew · alternative lue
- alternativeuncountableAlternative form of lanterloo: the card game.
Yet, ladies are seldom at ombre or lue sick.
1731, Jonathan Swift, To Dr. Helsham, 163 more examples
And my Intreagues ſo baſhfully diſown / That they may doubted be by few or none, / May kiſs the Cards at Picque, Hombre,—Lu, / And ſo be taught to kiſs the Lady too; [...]
1675, [William] Wycherley, The Country-wife, a Comedy, […], London: Printed for Thomas Dring, […], →OCLC; republished London: Printed for T[homas] Dring, and sold by R. Bentley, and S. Magnes […], 1688, →OCLC, epilogueEv'n mighty Pam that Kings and Queens o'erthrew, And mow'd down Armies in the Fights of Lu.
1712 May, [Alexander Pope], “The Rape of the Locke. An Heroi-comical Poem.”, in Miscellaneous Poems and Translations. […], London: […] Bernard Lintott […], →OCLC, canto IIIOn entering the drawing-room, she found the whole party at loo.
1813 January 27, [Jane Austen], chapter VIII, in Pride and Prejudice: […], volume I, London: […] [George Sidney] for T[homas] Egerton, […], →OCLC, page 80
present singular third person loos · participle present looing · participle past looed · past looed
loo4
plural loos
- obsoletefashionA half-mask, particularly (historical) those velvet half-masks fashionable in the 17th century as a means of protecting women's complexion from the sun.
Loo Mask. An half Mask.
a. 1685, Mary Evelyn, “The Fop-dictionary”, in Mundus Muliebris, page 18
loo5
- IndiaA hot dust-bearing wind found in Bihar, Uttar Pradesh and the Punjab.
It was a pitchy black night, as stifling as a June night can be, and the loo, the red-hot wind from the westward, was booming among the tinder-dry trees and pretending that the rain was on its heels.
1888, Rudyard Kipling, “The Man Who Would Be King”, in The Phantom 'Rickshaw and Other Tales, page 78
loo6
plural loos
- USslanggovernmentA lieutenant.
I asked my loo to let me escort you in. I wanted a moment to thank you personally.” “There's no need.” “So you said before, but there is. And was. I'll take you in to Lieutenant Ricchio.”
2012, J. D. Robb, New York to Dallas, Penguin, →ISBN, page 91
Loo7
Synonyms & antonyms
nounA lavatory: a room used for urination and defecation.
nounA toilet: a fixture used for urination and defecation.
More synonyms by meaning
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
loo · noun
- Scotsgardyloo
- Frenchl'
- Englishloo
Uncertain, although usually derived in some way from Waterloo, the site of Wellington's 1815 victory over Napoleon, likely via a pun based on water closet. Other suggested derivations include corruptions of French l'eau (“water”), lieu (“place”), lieux d'aisances (“'places of convenience': a lavatory”), lieu à l'anglaise (“'English place': a British-style lavatory”), bordalou (“a diminutive chamber pot”) or gardez l'eau (“'mind the water'”), via Scots gardyloo, formerly used in Edinburgh while emptying chamber pots out of windows; the supposed use of "Room 100" as the lavatory in Continental hotels; a popularisation of lew, a regional corruption of lee (“downwind”), in reference to shepherds' privies or the former use of beakheads on that side of the ship for urination and defecation; or a clipped form of the name of the unpopular 19th-century Countess of Lichfield Lady Harriett Georgiana Louisa Hamilton Anson, who was the subject of an 1867 prank whereby her bedroom's name-card was placed on the door to the lavatory, prompting the other guests to begin speaking of "going to Lady Louisa".
Full word history & related roots →loo · noun
- Frenchloup“wolf; mask, eyemask”
- Englishloo
From French loup (“wolf; mask, eyemask”). Doublet of lobo, lupus, and wolf.
More words from French
Full word history & related roots →loo · noun
- Sanskritउल्का“flame”
- Hindiलू
- Englishloo
From Hindi लू (lū), ultmately from Sanskrit उल्का (ulkā, “flame”).
More words from Hindi, Sanskrit
Full word history & related roots →Loo · proper noun
* As a Dutch and north German surname, from loo (“wood, clearing”). * As a Chinese surname, spelling variant of Lu.
Full word history & related roots →Rhymes & wordplay
Rhymes with loo
All rhymes →Sounds the same
Anagrams
Cite this entry
loo. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/loo
“loo.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/loo. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “loo,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/loo.
Source: loo on Wiktionary, CC BY-SA 4.0.