defalcator vs stealer

defalcator and stealer both are nouns.

Word	Noun	Adjective	Verb	Adverb
defalcator	Yes	No	No	No
stealer	Yes	No	No	No

As nouns, stealer is a hypernym of defalcator; that is, stealer is a word with a broader meaning than defalcator:

defalcator: someone who violates a trust by taking (money) for his own use
stealer: a criminal who takes property belonging to someone else with the intention of keeping it or selling it

Other hypernyms of defalcator include beguiler, cheat, cheater, deceiver, slicker, trickster, thief.

defalcator (noun)	stealer (noun)
someone who violates a trust by taking (money) for his own use	a criminal who takes property belonging to someone else with the intention of keeping it or selling it