ransom vs payment

ransom and payment both are nouns.

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

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

Other hypernyms of ransom include defrayal, defrayment.

ransom (noun)	payment (noun)
the act of freeing from captivity or punishment	the act of paying money
payment for the release of someone	an act of requiting; returning in kind
money demanded for the return of a captured person	a sum of money paid or a claim discharged

ransom (verb)	payment (verb)
exchange or buy back for money; under threat