rebuke vs criticism

rebuke and criticism both are nouns.

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

As nouns, criticism is a hypernym of rebuke; that is, criticism is a word with a broader meaning than rebuke:

Other hypernyms of rebuke include unfavorable judgment.

rebuke (noun)	criticism (noun)
an act or expression of criticism and censure	a serious examination and judgment of something
	disapproval expressed by pointing out faults or shortcomings
	a written evaluation of a work of literature

rebuke (verb)	criticism (verb)
censure severely or angrily