lavatory

A lavatory is a bathroom or a restroom. You should go to a restaurant's lavatory to wash your hands before dinner.

Lavatory is a slightly formal way to say "bathroom." Most people would never refer to this room in their own homes as a lavatory, although they might use this word for public restrooms in schools, hospitals, or other buildings. In the U.K., a lavatory is just a toilet, and its earliest meaning was "washbasin," from the Latin root lavatorium, or "place for washing."

Definitions of lavatory
  1. noun
    a room or building equipped with one or more toilets
    synonyms: bathroom, can, john, lav, privy, toilet
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    types:
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    head
    (nautical) a toilet on board a boat or ship
    comfort station, convenience, public convenience, public lavatory, public toilet, restroom, toilet facility, wash room
    a toilet that is available to the public
    washroom
    a lavatory (particularly a lavatory in a public place)
    W.C., closet, loo, water closet
    a toilet in Britain
    ladies' room, powder room
    a woman's restroom in a public (or semipublic) building
    latrine
    a public toilet in a military area
    men's, men's room
    a public toilet for men
    type of:
    room
    an area within a building enclosed by walls and floor and ceiling
  2. noun
    a toilet that is cleaned of waste by the flow of water through it
    synonyms: flush toilet
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    type of:
    can, commode, pot, potty, stool, throne, toilet
    a plumbing fixture for defecation and urination
  3. noun
    a bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face
    synonyms: basin, washbasin, washbowl, washstand
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    type of:
    sink
    plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe
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