British spelling vs natural fibre

British spelling and natural fibre both are nouns.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
natural fibre	Yes	No	No	No

British spelling (noun)	natural fibre (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	fiber derived from plants or animals