Looking at different explanations regards Avodah Zarah, different/various forms of idolatry, I tried to sum things up, I tried to get to get a definition out of it based on their common denominator.
Avodah Zarah (strange service/worship);
The adjective in ‘strange service’ has two senses. One is the strangeness of the object toward which the service/worship is directed, not the ‘proper G-d’ but other ‘gods’. The other refers to the method of service/worship, strange in the sense one serves in a matter that is strange to the Torah, strange to the ‘proper’ way of service.
[which in essence could imply the belief in a certain idea, image or object].
So we got a strange method of worship one the one hand and strange object of worship on the other. Is this what Avodah Zarah is? Or is there more to it?