British spelling vs cubic millimetre

British spelling and cubic millimetre both are nouns.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
cubic millimetre	Yes	No	No	No

British spelling (noun)	cubic millimetre (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	a metric measure of volume or capacity equal to a cube 1 millimeter on each edge