blood money vs payment

blood money and payment both are nouns.

Word	Noun	Adjective	Verb	Adverb
blood money	Yes	No	No	No
payment	Yes	No	No	No

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

blood money (noun)	payment (noun)
compensation paid to the family of a murdered person	the act of paying money
a reward for information about a murderer	an act of requiting; returning in kind
paid to a hired murderer	a sum of money paid or a claim discharged