italicise vs impress

italicise is not a noun while impress is a noun.

Word	Noun	Adjective	Verb	Adverb
italicise	No	No	Yes	No
impress	Yes	No	Yes	No

As verbs, impress is a hypernym of italicise; that is, impress is a word with a broader meaning than italicise:

Other hypernyms of italicise include print.

italicise (noun)	impress (noun)
	the act of coercing someone into government service

italicise (verb)	impress (verb)
print in italics	dye (fabric) before it is spun
	produce or try to produce a vivid impression of
	mark or stamp with or as if with pressure
	take (someone) against his will for compulsory service, especially on board a ship
	reproduce by printing
	impress positively
	have an emotional or cognitive impact upon