beauty salon vs beauty parlour

beauty salon and beauty parlour both are nouns.

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

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

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

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

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