Third WorldˌThird ˈWorld nounthe Third World countries that are poor and have little industrial development. This phrase can cause offence and people now usually say ‘developing countries’.—Third World adjective: Third World debt
Third WorldnounThird World
Third World, theˌThird ˈWorld, thethe poorer countries of the world that are not industrially developed, including most of Africa and parts of Asia and of Central and South America. Some people think this expression is offensive, and the Third World can also be called the South. →First World—Third-World adjective: Third-World economies