Definition of lavatory noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈlævətri//
    ; NAmE NAmE//ˈlævətɔːri//
    (pl. lavatories) (old-fashioned or formal) Rooms in a house
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  1. 1(especially British English) a toilet, or a room with a toilet in it There's a bathroom and a lavatory upstairs. See related entries: Rooms in a house
  2. 2(British English) a public building or part of a building, with toilets in it The nearest public lavatory is at the station.
  3. Word Originlate Middle English: from late Latin lavatorium ‘place for washing’, from Latin lavare ‘to wash’. The word originally denoted something in which to wash, such as a bath or pool for bathing, later (mid 17th cent.) a room with washing facilities; the current sense dates from the 19th cent.
See the Oxford Advanced American Dictionary entry: lavatory