Yeah but this is the same reason Pluto is no longer a planet. Definitions matter, and every single beverage that humans consume is mostly water so, where is the line drawn on saturation of additional components? We need a DEFINITE line. Also I am in the camp that every beverage is “[Additive]-water” and anything that crosses the “not-water” barrier becomes “soup” until it is a baked good or building material.

I purposefully called it lemon water. You could also call it lemonade.

you don’t call apple juice apple water or sprite sprite water.

but you do in other languages. Just because it's hard to find examples in English doesn't mean that the concept is unique.

Examples:

• Agua de horchata
• Agua fresca
• Agua de Jamaica a type of tea
• people are literally saying coconut water in this thread so idk what you think that is.
• Agua de Valencia a mimosa style cocktail
• Uisce beatha literally 'Water of Life' in Irish, it refers to Whiskey
• Aquavit another spirit that translate... you guessed it.. to Water of Life!
• Nước Chanh ... i'll let you google this one yourself 😉

In fact if you start looking into the root words of things you'll find 'water' everywhere! Vodka, you guessed it, is based on the root Slavic word 'voda' meaning..... Water!!! https://en.wikipedia.org/wiki/Vodka

We're just talking about water here. This extends to literally any ingredient in any drink ever. If you start looking at other drinks you start finding strange things like Punch which may be from the Sanskrit for 'five' denoting the five ingredients used in it.

The word punch may be a loanword from Hindi पाँच (pāñć), meaning "five", as the drink was frequently made with five ingredients: alcohol, sugar, juice from either a lime or a lemon, water, and spices.