Meanings
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1
noun
A room with a toilet, especially in formal or British usage.
Excuse me, could you tell me where the lavatory is?
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2
noun
A toilet fixture itself.
The aircraft has a lavatory at the rear of the cabin.
Thesaurus
Etymology
From Middle English lavatorie, from Late Latin lavātōrium, from Latin lavāre (“to wash”) + -ium (forming places related to an activity). As a place to pan gold, via Spanish lavadero. Doublet of lavatorium and laver. See also lave.
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