British spelling vs brain tumour

British spelling and brain tumour both are nouns.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
brain tumour	Yes	No	No	No

British spelling (noun)	brain tumour (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	a tumor in the brain