crystallise vs British spelling

crystallise is not a noun while British spelling is a noun.

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

crystallise (noun)	British spelling (noun)
	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')

crystallise (verb)	British spelling (verb)
cause to form crystals or assume crystalline form
cause to take on a definite and clear shape
make free from confusion or ambiguity; make clear