restroom
n.
bathroom, toilet
Washroom
A washroom is a room for washing one's hands (such as a lavatory), but the term also is used to denote a public
toilet, comfort room, toilet room,
bathroom, or restroom (see above). Some washrooms also include full-body
bathing facilities such as
shower.Washroom architecture refers to the architectural design and layout of washroom facilities, usually of a public commercial, or industrial facility.
See more at Wikipedia.org...
restroom
Noun
1. a toilet that is available to the public
(synonym) public toilet, comfort station, public convenience, convenience, public lavatory, toilet facility, wash room
(hypernym) toilet, lavatory, lav, can, john, privy, bathroom
(hyponym) ladies' room, powder room
restroom
n. ห้องน้ำ (syn. waiting room, toilet, can, rest room)