redeem vs redeemer

redeem is not a noun while redeemer is a noun.

Word	Noun	Adjective	Verb	Adverb
redeem	No	No	Yes	No
redeemer	Yes	No	No	No

redeem (noun)	redeemer (noun)
	someone who redeems or buys back (promissory notes or merchandise or commercial paper etc.)

redeem (verb)	redeemer (verb)
convert into cash; of commercial papers
pay off (loans or promissory notes)
exchange or buy back for money; under threat
to turn in (vouchers or coupons) and receive something in exchange
restore the honor or worth of
save from sins