retrieval vs recapture

retrieval and recapture both are nouns.

Word	Noun	Adjective	Verb	Adverb
retrieval	Yes	No	No	No
recapture	Yes	No	Yes	No

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

retrieval: the act of regaining or saving something lost (or in danger of becoming lost)
recapture: the act of taking something back

Other hyponyms of retrieval include repossession, reclamation, deliverance, delivery, rescue, saving, ransom, retaking.

retrieval (noun)	recapture (noun)
the act of regaining or saving something lost (or in danger of becoming lost)	the act of taking something back
the cognitive operation of accessing information in memory	a legal seizure by the government of profits beyond a fixed amount
(computer science) the operation of accessing information from the computer's memory

retrieval (verb)	recapture (verb)
	capture again
	take up anew
	experience anew
	take back by force, as after a battle