Third World
1. the underdeveloped nations of the world, esp. those with widespread poverty.
2. the group of developing nations, esp. of Asia and Africa, that do not align themselves with the policies of either the U.S. or the former Soviet Union.
3. the minority groups within a nation or predominant culture
Second World 
(sometimes lowercase)
1. the world's industrialized nations other than the U.S. and the U.S.S.R.
2. the Communist and socialist nations of the world.
First World
 
the major industrialized non-Communist nations, including those in Western Europe, the United States, Canada, and Japan,
_________________________________________________
Personally I define them as this and so do most newspapers these days.
First World
Any technologically advanced nation regardless of politics
US,UK,Russia, Germany, Taiwan, China, Israel, Argentina, Brazil,South Africa, Japan, Australia, Mexico etc
Second World
Those in the process of acquiring a majority technological advancement or developing countries
India, Iran,Saudi Arabia etc
Third world
Mostly African countries, but also Haiti and others.
If mexico isn't a devoloped nation then what is it?
1. the underdeveloped nations of the world, esp. those with widespread poverty.
2. the group of developing nations, esp. of Asia and Africa, that do not align themselves with the policies of either the U.S. or the former Soviet Union.
3. the minority groups within a nation or predominant culture
Second World 
(sometimes lowercase)
1. the world's industrialized nations other than the U.S. and the U.S.S.R.
2. the Communist and socialist nations of the world.
First World
 
the major industrialized non-Communist nations, including those in Western Europe, the United States, Canada, and Japan,
_________________________________________________
Personally I define them as this and so do most newspapers these days.
First World
Any technologically advanced nation regardless of politics
US,UK,Russia, Germany, Taiwan, China, Israel, Argentina, Brazil,South Africa, Japan, Australia, Mexico etc
Second World
Those in the process of acquiring a majority technological advancement or developing countries
India, Iran,Saudi Arabia etc
Third world
Mostly African countries, but also Haiti and others.
If mexico isn't a devoloped nation then what is it?
