pay off vs redeem

pay off and redeem both are verbs.

Word	Noun	Adjective	Verb	Adverb
pay off	No	No	Yes	No
redeem	No	No	Yes	No

As verbs, pay off and redeem are synonyms defined as:

pay off (verb)	redeem (verb)
take vengeance on or get even	convert into cash; of commercial papers
eliminate by paying off (debts)	pay off (loans or promissory notes)
pay someone with influence in order to receive a favor	exchange or buy back for money; under threat
yield a profit or result	to turn in (vouchers or coupons) and receive something in exchange
pay off (loans or promissory notes)	restore the honor or worth of
do or give something to somebody in return	save from sins