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Definition of lavatory

lavatory

/ˈlæv.əˌtɔːr.i/
lav · a · to · ry

Plural:lavatories
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lavatory Lexical Profile

lavatory Game Scores & Validity

• noun

1

A room or compartment equipped with a toilet and a washbasin.

Example

"The flight attendant announced that the lavatory at the front of the aircraft was temporarily out of service."


2

A flush toilet fixture used for urination and defecation.

Example

"The plumber was called in to fix a leak developing behind the ceramic lavatory."


3

A sink or washbasin, especially one located in a bathroom.

Example

"She washed her hands thoroughly at the lavatory before joining the guests for dinner."

Synonyms
View all synonyms for lavatory

Word Nuance & Usage

In global aviation, 'lavatory' is the universal industry term for an aircraft restroom, whereas in general British English, it serves as a polite everyday alternative to 'toilet'.

Word Origin & Etymology

Late Middle English (denoting a vessel for washing): from Latin lavatorium 'place for washing', from the verb lavare 'to wash'.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Lavatory. In Wordmom Dictionary. Retrieved Nov 6, 2026, from https://wordmom.com/dictionary/lavatory
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