Greed or avarice (covetousness) is the inordinate desire to have things or money and to get them at any cost.
It is the inordinate desire to have what someone else has merely because they have it and we don’t. Envy is similar, except that it also fosters resentment toward those who have what we do not. There is a sense of injustice that what they have should be ours, not theirs.
Greed is simply the desire to have the most. Greed is the source of much pain and misery in families, marriages, and friendships. It is not limited to the acquisition and possession of things, especially money, but also includes power. Greed has an insatiable appetite; it is voracious in that it is never satisfied. The more one has, the more one wants. Greedy people will do anything to obtain what they want: lie, steal, cheat, threaten, hurt, or even kill.
Greed distorts possessions from being tools, means, or instruments for achieving one’s goals into being ends in themselves. Just wanting to have stuff, regardless of how or even if it is used, is greed.
Greed refuses to share and resents any kind of generosity whatsoever. The object of desire need not be monetarily valuable, either. Greed makes us want what we want merely because we want it.