criticism vs roast

criticism and roast both are nouns.

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

As nouns, roast is a hyponym of criticism; that is, roast is a word with a more specific, narrower meaning than criticism:

Other hyponyms of criticism include examen, knock, self-criticism.

criticism (noun)	roast (noun)
a serious examination and judgment of something	negative criticism
disapproval expressed by pointing out faults or shortcomings	a piece of meat roasted or for roasting and of a size for slicing into more than one portion
a written evaluation of a work of literature

criticism (adjective)	roast (adjective)
	(meat) cooked by dry heat in an oven

criticism (verb)	roast (verb)
	cook with dry heat, usually in an oven
	subject to laughter or ridicule