centimetre vs British spelling

centimetre and British spelling both are nouns.

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

centimetre (noun)	British spelling (noun)
a metric unit of length equal to one hundredth of a meter	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')