Gluttony, e.g. is a term used to describe an excessive indulgence in something, usually food or drink. The crossword solutions for this term are SIN (3 letters) and GREED (5 letters). SIN is a religious term used to describe an action that goes against the teachings of a particular faith. GREED is an excessive desire for more than one needs or deserves. Both of these terms can be used to describe gluttony, as it involves taking more than one needs and often goes against religious teachings.