British spelling vs dead centre

British spelling and dead centre both are nouns.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
dead centre	Yes	No	No	No

British spelling (noun)	dead centre (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	the position of a crank when it is in line with the connecting rod and not exerting torque