moustache vs British spelling

moustache and British spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
moustache	Yes	No	No	No
British spelling	Yes	No	No	No

moustache (noun)	British spelling (noun)
an unshaved growth of hair on the upper lip	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')