Global Variable (Declaration)

GlobalVariable(varName₁, varName₂, ..., varName_n), GlobalVar(varName₁, varName₂, ..., varName_n)

Variables varName₁, varName₂, ..., varName_n are being declared. There is no type specification. Variables are - as well as stack elements - containers, and can adopt all relevant InstantView^® values.

In contradiction to variables which have been declared with the statement Variable, these variables are known in all modules. 

A global variable can be "hidden" by a local variable with the same name; in the opposite case:
It is forbidden to declare a global variable with the name of an already declared local variable (Example)!

Information: Inheriting modules reasonably  makes global variables extensively redundant.
Global variables interfere with module object features (capsulation) and should always be avoided if possible.