ransom money vs ransom

ransom money and ransom both are nouns.

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

As nouns, ransom money and ransom are synonyms defined as:

ransom money and ransom: money demanded for the return of a captured person

ransom money (noun)	ransom (noun)
money demanded for the return of a captured person	the act of freeing from captivity or punishment
	payment for the release of someone
	money demanded for the return of a captured person

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