Yes it is. I do not want to be that stickler but this is the charts for that term:
1st world: US, UK, West Germany, essentially western countries
2nd world: Soviets, East Germany, communist countries
3rd world: everyone who doesn’t fit the Cold War theater.
Either way, a GDP per capita of $15k isn’t considered “first” at whatever category you want to assign it by. Unfortunately there are no “1st world” countries in Latin America.
"X World" has gone he way of "begs the question", "Literally vs. Figuratively", "One bad apple..", etc. Popular usage has destroyed the original meaning, and it's no use trying to get people on board with what those phrases actually mean.
While the terms may have been originally coined during the Cold War, the meaning and common usage has clearly changed. If you use 'third world countries' in a conversation hardly anyone will assume that you're including Switzerland in that. When enough people use a word "wrong" for a long enough time, they kinda stop being wrong.
This could be related to the fact that while you still hear a lot about "first-world" and "third-world" countries, you don't ever hear anyone use the term "second-world".
https://en.wikipedia.org/wiki/Developing_country#Country_lis...