agonise vs pain

agonise is not a noun while pain is a noun.

Word	Noun	Adjective	Verb	Adverb
agonise	No	No	Yes	No
pain	Yes	No	Yes	No

As verbs, pain is a hypernym of agonise; that is, pain is a word with a broader meaning than agonise:

Other hypernyms of agonise include anguish, hurt.

agonise (noun)	pain (noun)
	a somatic sensation of acute discomfort
	something or someone that causes trouble; a source of unhappiness
	emotional distress; a fundamental feeling that people try to avoid
	a symptom of some physical hurt or disorder

agonise (verb)	pain (verb)
suffer agony or anguish	cause bodily suffering to and make sick or indisposed
cause to agonize	cause emotional anguish or make miserable