idol

n.

  1. An image or representation of anything.
  2. An image of a divinity; a representation or symbol of a deity or any other being or thing, made or used as an object of worship; a similitude of a false god.
  3. That on which the affections are strongly (often excessively) set; an object of passionate devotion; a person or thing greatly loved or adored.
  4. A false notion or conception; a fallacy.