warn vs admonish

warn and admonish both are verbs.

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

As verbs, admonish is a hyponym of warn; that is, admonish is a word with a more specific, narrower meaning than warn:

Other hyponyms of warn include forewarn, previse, caution, monish, threaten, alarm, alert.

As verbs, warn and admonish are synonyms defined as:

Other synonyms of warn include discourage, monish.

warn (verb)	admonish (verb)
notify of danger, potential harm, or risk	take to task
advise or counsel in terms of someone's behavior	warn strongly; put on guard
notify, usually in advance	advise or counsel in terms of someone's behavior
ask to go away