symbol

US /ˈsɪm.bəl/
UK /ˈsɪm.bəl/
"symbol" picture
1.

a thing that represents or stands for something else, especially a material object representing something abstract.

:
The dove is a symbol of peace.
The cross is a powerful symbol for Christians.
2.

a character or mark used to represent something in a system of notation or a mathematical expression.

:
The dollar symbol ($) is used for currency.
The chemical symbol for water is H2O.