Idolatry is usually defined as worship of any cult image, idea, or object , as opposed to the worship of a monothestic God. It is considered a major sin in the Abrahamic religions whereas in religions where such activity is not considered a sin, the term "idolatry" itself is absent. Which images, ideas, and objects, constitute idolatry, and which constitute reasonable worship, is a matter of contention with some religious authorities and groups using the term to describe certain other religions apart from their own (sometimes resulting in iconoclasm).
Most people think that just because they don't have statues in there home and bow down to them, that they don't worship idols. I remember reading a book by David Wilkerson-(I believe it was published in the 70's), called "The Vision". In it the author states that we all have idols in our homes. What?? No, we don't.....He was talking about the television. He said, "If it's not an idol - then why is all your furniture facing it?". It's true! It is usually the main focus in a room. It really made me think. How much time do we spend in front of the TV? I'm pretty sure I spend way too much time watching it.
For some people it is easier to give money to the Lord and that's great, but what about time? If we were asked to tithe 10% percent of our time would we cut it?......Just something I was thinking about.