beauty parlour vs beauty parlor

beauty parlour and beauty parlor both are nouns.

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

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

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

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

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