kibitz vs comment

kibitz is not a noun while comment is a noun.

Word	Noun	Adjective	Verb	Adverb
kibitz	No	No	Yes	No
comment	Yes	No	Yes	No

As verbs, comment is a hypernym of kibitz; that is, comment is a word with a broader meaning than kibitz:

Other hypernyms of kibitz include notice, point out, remark.

kibitz (noun)	comment (noun)
	a statement that expresses a personal opinion or belief or adds information
	a written explanation or criticism or illustration that is added to a book or other textual material
	a report (often malicious) about the behavior of other people

kibitz (verb)	comment (verb)
make unwanted and intrusive comments	make or write a comment on
	provide interlinear explanations for words or phrases
	explain or interpret something