demagogue vs British spelling

demagogue and British spelling both are nouns.

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

demagogue (noun)	British spelling (noun)
a political leader who seeks support by appealing to popular passions and prejudices	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')