Many country names have only six letters; you can even learn to spell them quite easily if you remember the first three letters, then the last three letters.
In North America, countries with only six letters in their names are Canada, Belize, Panama, and Mexico. Some people consider Belize, Panama, and Mexico to be part of Central America or Latin America because they are so culturally different from the United States and Canada. However, they are still part of the North American continent. In South America, countries whose names have six letters are Guyana and Brazil.
Europe has many countries that have six-letter names. They include Sweden, France, Poland, Norway, Cyprus, Latvia, Serbia, Greece, Kosovo, and the tiny coastal country of Monaco. Two transcontinental countries, located in Europe and Asia, have six letters: Turkey and, the world's largest country, Russia.
In Asia, countries whose names have six letters include the island nation of Taiwan, the land-locked Himalayan nation of Bhutan, and Brunei. Tuvalu is a tiny archipelago in the South Pacific, consisting of several islands that are considered part of the Australian continent. The Middle East countries with six letters are Israel, the desert kingdom of Jordan, and the oil-rich gulf country of Kuwait.
You cannot learn much about a country’s history or culture by looking at how many letters are in its name. The fact that many countries have six-letter names does not mean that they have much in common. Nevertheless, if you are trying to learn to spell the names of countries, then starting with those with six-letter names is a great place to start. Learn the first three letters and then the last three letters.
If you are trying to memorize all of the world's countries, then the six-letter countries are also a great place to begin. See if you can find them all on a map! Then, move to the seven-letter countries.