British spelling vs millilitre

British spelling and millilitre both are nouns.

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

British spelling (noun)	millilitre (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	a metric unit of volume equal to one thousandth of a liter