pay vs payment

pay and payment both are nouns.

Word	Noun	Adjective	Verb	Adverb
pay	Yes	No	Yes	No
payment	Yes	No	No	No

pay (noun)	payment (noun)
something that remunerates	the act of paying money
	an act of requiting; returning in kind
	a sum of money paid or a claim discharged

pay (verb)	payment (verb)
dedicate
bear (a cost or penalty), in recompense for some action
convey, as of a compliment, regards, attention, etc.; bestow
give money, usually in exchange for goods or services
bring in
do or give something to somebody in return
cancel or discharge a debt
make a compensation for
discharge or settle
render
be worth it