British spelling vs favourite

British spelling and favourite both are nouns.

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

British spelling (noun)	favourite (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	something regarded with special favor or liking
	a special loved one
	a competitor thought likely to win

British spelling (adjective)	favourite (adjective)
	preferred above all others and treated with partiality
	appealing to the general public

British spelling (verb)	favourite (verb)
	To mark an item as a personal favorite on social media