a very strong wish to continuously get more of something, especially food or money

I don't know why I'm eating more - it's not hunger, it's just greed! 我不知道自己为什么还想吃——不是因为觉得饿，只是贪嘴！

He was unsympathetic with many house sellers, complaining that they were motivated by greed. 他对很多卖房者表示反感，抱怨说他们是受贪念驱使。