What does the size of a variable mean?

[Runze Zhang]

Hello,
I have no idea what the size of the variable below represents

{
    var1: size1,
    ...
    varM: sizeM
}

But I found that it can have an effect on the result， could you please explain what it means?

[Darryl Reeves]

Hello,
The size is the number of discrete states which a variable can possibly take on.

[Runze Zhang]

Hello, The size is the number of discrete states which a variable can possibly take on.

I understand, thanks a lot