getting even vs payment

getting even and payment both are nouns.

Word	Noun	Adjective	Verb	Adverb
getting even	Yes	No	No	No
payment	Yes	No	No	No

As nouns, payment is a hyponym of getting even; that is, payment is a word with a more specific, narrower meaning than getting even:

Other hyponyms of getting even include requital, retaliation, revenge, reciprocation, tit for tat.

getting even (noun)	payment (noun)
a reciprocal group action	the act of paying money
	an act of requiting; returning in kind
	a sum of money paid or a claim discharged