threaten vs warn

threaten and warn both are verbs.

Word	Noun	Adjective	Verb	Adverb
threaten	No	No	Yes	No
warn	No	No	Yes	No

As verbs, warn is a hypernym of threaten; that is, warn is a word with a broader meaning than threaten:

threaten (verb)	warn (verb)
to utter intentions of injury or punishment against	notify of danger, potential harm, or risk
to be a menacing indication of something	advise or counsel in terms of someone's behavior
pose a threat to; present a danger to	notify, usually in advance
	ask to go away