British spelling vs mumma

British spelling and mumma both are nouns.

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

British spelling (noun)	mumma (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	informal terms for a mother