One that is adored, often blindly or excessively.(noun)
Something visible but without substance.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "idol" in a sentence
"Attention is called to the difficulty of drawing the line between a doll and an idol among primitive peoples, the connection of dolls with religion, psychological evidence of which lingers with us to-day in the persistent folk-etymology which connects _doll_ with _idol_."
"And disgrace – whoever you are … your idol is a nasty bitter man."
"CHOI: I think this is what they call idol chit chat, don't you?"