rapacity vs deadly sin

rapacity and deadly sin both are nouns.

Word	Noun	Adjective	Verb	Adverb
rapacity	Yes	No	No	No
deadly sin	Yes	No	No	No

As nouns, deadly sin is a hypernym of rapacity; that is, deadly sin is a word with a broader meaning than rapacity:

rapacity: reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins)
deadly sin: an unpardonable sin entailing a total loss of grace

Other hypernyms of rapacity include mortal sin.

rapacity (noun)	deadly sin (noun)
reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins)	an unpardonable sin entailing a total loss of grace
extreme gluttony
(of an animal, usually a bird) The quality of subsisting off live prey.