Help with global variable

Hey guys im doing this tutorial

But im confued when it says: First, I am declaring a new global variable called destroyed. Now, look at the events:

Event 1: on the start of the layout (think about ADDED_TO_STAGE if you love AS3) I am setting destroyed variable to zero and set the dynamic text to ?Destroyed: 0/6?.

What does it mean when he says :declaring a new global variable?

I know i can add a variable to a sprite and such but i dont think thats what that person ment here.

Im kinda new to construct 2 and confused by this anyone that can help me out?

Variables in construct are declared when you make them, you have to put in an initial value. There's no need to "declare" it by setting it to a value on start of layout, unless you want the variable to reset whenever the layout starts. So as far as I know, he used the wrong term.

Ok thanks for the info.