The noun has 2 meanings:
Meaning #1:
a bathroom or lavatory sink that is permanently installed and connected to a water supply and drainpipe; where you wash your hands and face
Synonyms: basin, washbowl, washstand, lavatory
Meaning #2:
a basin for washing the hands (`wash-hand basin' is a British expression)
Synonyms: handbasin, washbowl, lavabo, wash-hand basin




