British spelling vs timbre

British spelling and timbre both are nouns.

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

British spelling (noun)	timbre (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	(music) the distinctive property of a complex sound (a voice or noise or musical sound)