calibre vs British spelling

calibre and British spelling both are nouns.

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

calibre (noun)	British spelling (noun)
a degree or grade of excellence or worth	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')
diameter of a tube or gun barrel