public enum Enum_example {One, Two, Three, Four}
// Enum_example can have the values: Enum_example.One, Enum_example.Two, Enum_example.Three, Enum_example.Four
public class Example : MonoBehaviour {
Enum_example Enum_Var = Enum_example.Three;
// Enum_Var is a variable with the value Enum_example.three.
}