greed vs covetousness

greed and covetousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
greed	Yes	No	No	No
covetousness	Yes	No	No	No

As nouns, greed and covetousness are synonyms defined as:

greed and covetousness: reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins)

Other synonyms of greed include avarice, avaritia, rapacity.

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

greed: excessive desire to acquire or possess more (especially more material wealth) than one needs or deserves
covetousness: extreme greed for material wealth

Other hyponyms of greed include avarice, avariciousness, cupidity, possessiveness, acquisitiveness.

greed (noun)	covetousness (noun)
reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins)	reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins)
excessive desire to acquire or possess more (especially more material wealth) than one needs or deserves	extreme greed for material wealth
	an envious eagerness to possess something