| A | B |
| Nation | Any sizable group of people who are united by common bonds of race, language, custom, tradition and sometimes religion |
| State | A political community that occupies a definite territory and has an organized government with the power to make and enforce laws without approval from any higher authority. |
| Country | This word can be used in place of state. |
| Nation-State | When the boundary of state and nation are the same this term is used. |
| Internediate Country | Country that is better off than the average underdeveloped country |
| Fourth World Country | Country that is the worst off of the underdeveloped countries, UN based term |
| Rich and Poor | Simple terms for developed and underdeveloped countries |
| Industralized/Industralizing | Term used in business areas, describes major economic sector only |
| North/South | UN-created term, uses geographic reference, confusing |
| Less Developed Country | Full Substitute for Underdeveloped country |
| Developing Country | Term considered poor by some, no prefix |
| Third World/Third World Country | Term with dual meaning, in the US taken to be equal to underdeveloped, battlefield issue |
| Backward/Primitive Country | Obsolete names used prior to 1960 |