suasion vs weapon

suasion and weapon both are nouns.

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

As nouns, weapon is a hyponym of suasion; that is, weapon is a word with a more specific, narrower meaning than suasion:

suasion: the act of persuading (or attempting to persuade); communication intended to induce belief or action
weapon: a means of persuading or arguing

suasion (noun)	weapon (noun)
the act of persuading (or attempting to persuade); communication intended to induce belief or action	any instrument or instrumentality used in fighting or hunting
	a means of persuading or arguing