I see it as English-centric, rather than US-centric. That differentiation isn't necessary in most (all?) languages.
Adopting the word "gratis" when the speaker means "at no monetary cost" also helps clarify things.
Adopting the word "gratis" when the speaker means "at no monetary cost" also helps clarify things.
Someone can give you a free beer and a complimentary license to manufacture and distribute that same beer, and even make changes to the recipe.
Yes, I believe so.