exhortation vs persuasion

exhortation and persuasion both are nouns.

Word	Noun	Adjective	Verb	Adverb
exhortation	Yes	No	No	No
persuasion	Yes	No	No	No

As nouns, persuasion is a hypernym of exhortation; that is, persuasion is a word with a broader meaning than exhortation:

exhortation: the act of exhorting; an earnest attempt at persuasion
persuasion: the act of persuading (or attempting to persuade); communication intended to induce belief or action

Other hypernyms of exhortation include suasion.

exhortation (noun)	persuasion (noun)
the act of exhorting; an earnest attempt at persuasion	a personal belief or judgment that is not founded on proof or certainty
a communication intended to urge or persuade the recipients to take some action	the act of persuading (or attempting to persuade); communication intended to induce belief or action