revival vs regeneration

revival and regeneration both are nouns.

Word	Noun	Adjective	Verb	Adverb
revival	Yes	No	No	No
regeneration	Yes	No	No	No

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

Other hyponyms of revival include rebirth, Renaissance, Renascence, resurrection, resuscitation.

revival (noun)	regeneration (noun)
bringing again into activity and prominence	the activity of spiritual or physical renewal
an evangelistic meeting intended to reawaken interest in religion	forming again (especially with improvements or removal of defects); renewing and reconstituting
	(biology) growth anew of lost tissue or destroyed parts or organs
	feedback in phase with (augmenting) the input