categorised vs classified

categorised is not a noun while classified is a noun.

Word	Noun	Adjective	Verb	Adverb
categorised	No	Yes	No	No
classified	Yes	Yes	No	No

categorised (noun)	classified (noun)
	a short ad in a newspaper or magazine (usually in small print) and appearing along with other ads of the same type

categorised (adjective)	classified (adjective)
arranged into categories	arranged into classes
	official classification of information or documents; withheld from general circulation