scrutinise vs scrutiniser

scrutinise is not a noun while scrutiniser is a noun.

Word	Noun	Adjective	Verb	Adverb
scrutinise	No	No	Yes	No
scrutiniser	Yes	No	No	No

scrutinise (noun)	scrutiniser (noun)
	a careful examiner; someone who inspects with great care

scrutinise (verb)	scrutiniser (verb)
examine carefully for accuracy with the intent of verification
to look at critically or searchingly, or in minute detail