> Paris downtown
Where is downtown Paris? 1/2/3 arrondissement? I never heard the term used for Paris. Mostly, it is used to describe the Wall Street area of Manhattan (NYC) as the island is relatively north-south and Wall Street is on the southern end.I always thought "downtown" and "uptown" were more like "south from X" and "north from X" where X is some reference point in context (e.g. "where I'm standing"). Turns out, it's more similar to "downwell" and "upwell", i.e. towards or away from some central point (gravity wells being spherical-ish and all).
It just so happens that for Manhattan which is the most famous uptown, all four of those indicators point in the same direction. In general I think an area would more likely be called an uptown if it met more of those criteria relative to some downtown. (And there would be correlation, wealthier residents would buy higher-elevation land.)
Australians are the ones who say CBD.
Not sure I have ever heard downtown being used to refer to part of a New Zealand city although I understand its meaning.
( https://www.etymonline.com/word/downtown : "The notion is originally literal, of suburbs built on heights around a city." )
It's the only available word for the concept in American English. I wouldn't recommend saying CBD; that would refer to cannabidiol or to marijuana in general.
Edit forgot link: https://downtownny.com/news/where-did-downtown-come-from/
> Let’s suppose that Fosdick, incoherent from distress, forgot to include the words “to the” between “down” and “town” when describing the direction in which people were fleeing. With this in mind, we can assume that Lower Manhattan is in fact the original “downtown,” as posited by Schwarzer, and that the possible Bostonian origin of the word is simply a misunderstanding.