peculator vs stealer

peculator and stealer both are nouns.

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

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

peculator: 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 peculator include beguiler, cheat, cheater, deceiver, slicker, trickster, thief.

peculator (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