arm-twisting vs suasion

arm-twisting and suasion both are nouns.

Word	Noun	Adjective	Verb	Adverb
arm-twisting	Yes	No	No	No
suasion	Yes	No	No	No

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

arm-twisting: persuasion by the use of direct personal pressure
suasion: the act of persuading (or attempting to persuade); communication intended to induce belief or action

Other hypernyms of arm-twisting include persuasion.

arm-twisting (noun)	suasion (noun)
persuasion by the use of direct personal pressure	the act of persuading (or attempting to persuade); communication intended to induce belief or action