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Koreans learn this Hanja character as “나라 국”. “나라” is the native Korean meaning for “country,” and “국” is the Sino-Korean pronunciation. As a side note, its simplified version is this(国).
While “나라” means country, only a few specific nation names end with the sound “국.” Not every country follows this rule! There are five main examples you’ll see often: 한국 (Korea), 중국 (China), 태국 (Thailand), 미국 (USA), and 영국 (UK).
The origins are quite fascinating. 태국 (泰國, Tàiguó) comes from the “Thai” sound in “เมืองไทย(Muang Thai)”. 미국 (美國, Měiguó) started because when Americans introduced their country as “America,” people in China focused on the “merica” part and called it Měiguó. Similarly, 영국 (英國, Yīngguó) took the “Eng” sound from England to create Yīngguó. When Koreans read these Hanja characters with Korean pronunciations, they became 미국 and 영국.
Now, let’s explore other essential Korean words that use “국”.
- 국가 (國家) [국까]: nation
- 국민 (國民) [궁민]: citizen
- 국적 (國籍) [국쩍]: nationality
- 국어 (國語) [구거]: national language
- 모국어 (母國語) [모구거]: mother tongue
- 국사 (國史) [국싸]: national history
- 국보 (國寶) [국뽀]: national treasure
- 국기 (國旗) [국끼]: national flag
- 외국 (外國): foreign country

- 국제 (國際) [국쩨]: international
- 입국 (入國) [입꾹]: entry into a country
- 출국 (出國): departure from a country
- 귀국 (歸國): returning to the country
- 국경 (國境) [국꼉]: national border
- 국회 (國會) [국쾌]: national assembly
- 국력 (國力) [궁녁]: national power/strength
- 국산 (國產) [국싼]: domestic product
- 천국 (天國): heaven

