British spelling vs call centre

British spelling and call centre both are nouns.

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

British spelling (noun)	call centre (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	a center equipped to handle a large volume of telephone calls (especially for taking orders or serving customers)