The Republic of Korea is the official name of South Korea. However, there are many synonyms for this East Asian country's name. One of the most commonly used is simply "Korea," with the "South" implied. Other synonyms include "ROK," which is an abbreviation of Republic of Korea, and "Hanguk," the country's name in Korean. Additionally, "Daehan Minguk" is a more formal way to refer to South Korea in the Korean language. Some people also refer to South Korea as the "Land of the Morning Calm" due to its natural beauty and peaceful demeanor. Whatever you call it, South Korea remains an important global economic and cultural force.