I eschew the controversial "soda" and "pop" monikers and instead just call it "caffeine". Who needs the bubbly water and caramel, I say. I don't refer to orange juice as "pasteurized orange concentrate", I don't refer to fruit snacks as "hyrdolized corn syrup", so I'm not about to go around calling caffeine "soda".
Not surprisingly, non-caffeinated soda/pop (including the clear, lemon-lime varieties) are designated as "non-caffeine".