deadly sin vs avarice

deadly sin and avarice both are nouns.

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

As nouns, avarice is a hyponym of deadly sin; that is, avarice is a word with a more specific, narrower meaning than deadly sin:

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

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