Avi A sign is anything that stands for something else.
Signs are images that have a relationship to what they are representing.
A symbol has no real relationship to what it is made to represent. The meaning of symbols is arbitrary. An icon is indexical meaning that there is a relationship to things and what it is used to represent. The Swastika The Swastika. A very disturbing symbol to many people but yet the precise meaning behind the symbol is very unclear.