rentier vs investor

rentier and investor both are nouns.

Word	Noun	Adjective	Verb	Adverb
rentier	Yes	No	No	No
investor	Yes	No	No	No

As nouns, investor is a hypernym of rentier; that is, investor is a word with a broader meaning than rentier:

rentier: someone whose income is from property rents or bond interest and other investments
investor: someone who commits capital in order to gain financial returns

rentier (noun)	investor (noun)
someone whose income is from property rents or bond interest and other investments	someone who commits capital in order to gain financial returns