ill humour vs British spelling

ill humour and British spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
ill humour	Yes	No	No	No
British spelling	Yes	No	No	No

ill humour (noun)	British spelling (noun)
an angry and disagreeable mood	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')