kleptomaniac vs appropriator

kleptomaniac and appropriator both are nouns.

Word	Noun	Adjective	Verb	Adverb
kleptomaniac	Yes	No	No	No
appropriator	Yes	No	No	No

As nouns, appropriator is a hypernym of kleptomaniac; that is, appropriator is a word with a broader meaning than kleptomaniac:

kleptomaniac: someone with an irrational urge to steal in the absence of an economic motive
appropriator: someone who takes for his or her own use (especially without permission)

kleptomaniac (noun)	appropriator (noun)
someone with an irrational urge to steal in the absence of an economic motive	someone who takes for his or her own use (especially without permission)