proselytism vs suasion

proselytism and suasion both are nouns.

Word	Noun	Adjective	Verb	Adverb
proselytism	Yes	No	No	No
suasion	Yes	No	No	No

As nouns, suasion is a hypernym of proselytism; that is, suasion is a word with a broader meaning than proselytism:

proselytism: the practice of proselytizing
suasion: the act of persuading (or attempting to persuade); communication intended to induce belief or action

Other hypernyms of proselytism include persuasion.

proselytism (noun)	suasion (noun)
the state of being a proselyte; spiritual rebirth resulting from the zeal of crusading advocacy of the gospel	the act of persuading (or attempting to persuade); communication intended to induce belief or action
the practice of proselytizing