recovery vs ransom

recovery and ransom both are nouns.

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

As nouns, ransom is a hyponym of recovery; that is, ransom is a word with a more specific, narrower meaning than recovery:

recovery: the act of regaining or saving something lost (or in danger of becoming lost)
ransom: the act of freeing from captivity or punishment

Other hyponyms of recovery include repossession, reclamation, deliverance, delivery, rescue, saving, recapture, retaking.

recovery (noun)	ransom (noun)
the act of regaining or saving something lost (or in danger of becoming lost)	the act of freeing from captivity or punishment
return to an original state	payment for the release of someone
gradual healing (through rest) after sickness or injury	money demanded for the return of a captured person

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