rebuke vs criticize

rebuke is a noun but criticize is not a noun.

Word	Noun	Adjective	Verb	Adverb
rebuke	Yes	No	Yes	No
criticize	No	No	Yes	No

As verbs, criticize is a hypernym of rebuke; that is, criticize is a word with a broader meaning than rebuke:

rebuke: censure severely or angrily
criticize: find fault with; express criticism of; point out real or perceived flaws

Other hypernyms of rebuke include criticise, knock, pick apart.

rebuke (noun)	criticize (noun)
an act or expression of criticism and censure

rebuke (verb)	criticize (verb)
censure severely or angrily	find fault with; express criticism of; point out real or perceived flaws
	act as a critic