retrieval vs retaking

retrieval and retaking both are nouns.

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

As nouns, retaking is a hyponym of retrieval; that is, retaking 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)
retaking: the act of taking something back

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

retrieval (noun)	retaking (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
(computer science) the operation of accessing information from the computer's memory