Icon (noun)

1. A symbol or representation that serves as a sign of recognition or identity.
2. A picture or representation of a holy person or deity, especially in the Eastern Orthodox Church.
3. A computer icon is a pictorial representation of an object or program that is used to access it.

Origin:

The word icon comes from the greek word 'eikōn' which means 'image' or 'likeness'.

Examples:

1. He had a small icon of the Virgin Mary hanging on the wall.
2. A smiley face is an iconic representation of happiness.
3. The recycling symbol is a common environmental icon.
4. She double-clicked the computer icon to open the file.
5. The iconic statue of Christ the Redeemer stands on top of Corcovado Mountain in Rio de Janeiro.