Although the terms first, second and third world are often used to connote standards of living, that’s not the original sense[1] in which these terms were coine

Although the terms first, second and third world are often used to connote standards of living, that’s not the original sense[1] in which these terms were coined. They were Cold War era terms used to classify countries into Western bloc, Soviet bloc and the countries not aligned with either of the aforementioned blocks. And going by measure, the US could never be a 2nd world country :) [1]: https://en.m.wikipedia.org/wiki/First_World https://en.m.wikipedia.org/wiki/First_World