Identifier
Identifiers are names for objects and entities.
Python Example
A list of Python reserved words that cannot be used as identifiers can be found here: https://docs.python.org/2.5/ref/keywords.html
# Identifiers are names for variables, functions, modules and other objects. number1 = 20 string1 = "This is a string." def my_print(parameter1, parameter2): print(str(parameter1), str(parameter2)) # Use identifiers. my_print(number1, string1)