British spelling vs bastardisation

British spelling and bastardisation both are nouns.

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

British spelling (noun)	bastardisation (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	an act that debases or corrupts