bemoan vs complain

bemoan and complain both are verbs.

Word	Noun	Adjective	Verb	Adverb
bemoan	No	No	Yes	No
complain	No	No	Yes	No

As verbs, complain is a hypernym of bemoan; that is, complain is a word with a broader meaning than bemoan:

Other hypernyms of bemoan include kick, kvetch, plain, quetch, sound off.

bemoan (verb)	complain (verb)
regret strongly	express complaints, discontent, displeasure, or unhappiness
	make a formal accusation; bring a formal charge