washbasin vs washbowl

washbasin and washbowl both are nouns.

Word	Noun	Adjective	Verb	Adverb
washbasin	Yes	No	No	No
washbowl	Yes	No	No	No

As nouns, washbasin and washbowl are synonyms defined as:

Other synonyms of washbasin include handbasin, lavabo, wash-hand basin.

As nouns, washbasin and washbowl are synonyms defined as:

washbasin and washbowl: a bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face

Other synonyms of washbasin include basin, lavatory, washstand.

washbasin (noun)	washbowl (noun)
a basin for washing the hands	a basin for washing the hands
a bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face	a bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face