beauty parlour vs beauty salon

beauty parlour and beauty salon both are nouns.

Word	Noun	Adjective	Verb	Adverb
beauty parlour	Yes	No	No	No
beauty salon	Yes	No	No	No

As nouns, beauty parlour and beauty salon are synonyms defined as:

beauty parlour and beauty salon: a shop where hairdressers and beauticians work

Other synonyms of beauty parlour include beauty parlor, beauty shop, salon.

beauty parlour (noun)	beauty salon (noun)
a shop where hairdressers and beauticians work	a shop where hairdressers and beauticians work