Greed dream meaning is explained below using 3 different sources. Each interpretation is shown with its source.

Interpretation 1 — Garuda

Depth Psychology: A greedy person is one who hates to lose money, security, power, and sexual prowess, and stockpiles it all. As a result, such a person is unable to form a true emotional relationship to anyone else. Life will be the poorer for it. Dreaming about greed is a warning that we would be better off to use and share everything we have!
Source: Dreamers Dictionary Author: Garuda

Interpretation 2 — Klaus Vollmar

Be more moderate. Or: you think you have been short-changed. Repressed urges / drives. As in Miser. Also a hint that you are ravenous, which is a sign of unreasonable needs for gratification.

See Wolf.

Source: Little Giant Encyclopedia Author: Klaus Vollmar

Interpretation 3 — Ibn Seerin

(Avariciousness, Covetousness, Niggardliness) Greed in a dream means committing a sin.
Source: Islamic Dream Interpretation Author: Ibn Seerin