avarice vs mortal sin

avarice and mortal sin both are nouns.

Word	Noun	Adjective	Verb	Adverb
avarice	Yes	No	No	No
mortal sin	Yes	No	No	No

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

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

Other hypernyms of avarice include deadly sin.

avarice (noun)	mortal 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 greed for material wealth