lav·a·to·ry /ˈlævəˌtori, ˌtɔr, ||vət(ə)ri/
  廁所,盥洗室
  Lav·a·to·ry a. Washing, or cleansing by washing.
  Lav·a·to·ry, n.; pl. Lavatories
  1. A place for washing.
  2. A basin or other vessel for washing in.
  3. A wash or lotion for a diseased part.
  4. A place where gold is obtained by washing.
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  lavatory
       n 1: a room equipped with toilet facilities [syn: toilet, lav,
             can, john, privy, bathroom]
       2: a bathroom or lavatory sink that is permanently installed
          and connected to a water supply and drainpipe; where you
          wash your hands and face; "he ran some water in the basin
          and splashed it on his face" [syn: washbasin, basin, washbowl,
           washstand]
       3: a toilet that is cleaned of waste by the flow of water
          through it [syn: flush toilet]