1) Basin 2) Lavatory 3) Sink 4) Wash-handbasin 5) Washbowl 6) Washstand 1) Hand basin 2) Lavabo 3) Sink 4) Washbowl 
[n] - a bathroom or lavatory sink that is permanently installed and connected to a water supply and drainpipe 2. [n] - a basin for washing the hands (`wash-hand basin` is a British expression)
handbasin noun a basin for washing the hands (`wash-hand basin` is a British expression)