The crossword solutions for the term 'Greed or Gluttony' are SIN, which is a three-letter word. SIN is a religious concept that refers to an action that violates a moral rule or divine law. Greed and gluttony are two of the seven deadly sins, which are considered to be the most serious transgressions against God. Greed is an excessive desire for material possessions, while gluttony is an excessive consumption of food or drink. Both of these sins are seen as selfish and immoral acts that can lead to spiritual and physical harm.