Yep, you've got it! When we talk about "moving" or "spending" bitcoins, we're usually talking about sending them from one address to another.
Think of it like moving money from one pocket to another. Even though it's still in your pants, it's now in a different place!
And remember - each Bitcoin transaction can involve multiple addresses. You might be sending bitcoin from one of your addresses to several others (like when you're making a payment and also getting some change back). It's all part of the magic that makes Bitcoin work!