benefit vs payment

benefit and payment both are nouns.

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

As nouns, payment is a hypernym of benefit; that is, payment is a word with a broader meaning than benefit:

benefit (noun)	payment (noun)
something that aids or promotes well-being	the act of paying money
a performance to raise money for a charitable cause	an act of requiting; returning in kind
financial assistance in time of need	a sum of money paid or a claim discharged

benefit (verb)	payment (verb)
derive a benefit from
be beneficial for