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

n a room or building equipped with one or more toilets

Synonyms:
bathroom, can, john, lav, privy, toilet
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

n a toilet that is cleaned of waste by the flow of water through it

Synonyms:
flush toilet
Type of:
can, commode, pot, potty, stool, throne, toilet
a plumbing fixture for defecation and urination

n 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
Type of:
sink
plumbing fixture consisting of a water basin fixed to a wall or floor and having a drainpipe

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