The character has a "dominant presence". Okay, what does that entail? Is it in the way they walk? What does that look like? The way they talk? What does that sound like? Do they take control of the space? How? The Johnson treatment?

And most importantly, how could they be 'dominant' if they're all alone and there's no one there to dominate?

There's a difference between using a term as shorthand for something you actually understand, and using a term because it's a lazy cliche.