lavatory

nouns

a room or building equipped with one or more toilets
bathroom, can, john, lav, lavatory, privy, toilet
a bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face
"he ran some water in the basin and splashed it on his face"
basin, lavatory, washbasin, washbowl, washstand
a toilet that is cleaned of waste by the flow of water through it
flush toilet, lavatory