국(國): One Hanja Root, Every Country Word
Written and reviewed by Jun and Jin, native Korean speakers
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After this page, you can recognize the 국(國) root and guess the meaning of new words built from it.
10-second answer
The short answer
국 (guk) comes from the Chinese character 國, meaning "country/nation." It's one of the most productive roots in everyday Korean: 한(han, Korea) + 국 = 한국 (hanguk, Korea), 외(oe, outside) + 국 = 외국 (oeguk, foreign country), 전(jeon, whole) + 국 = 전국 (jeonguk, the whole country/nationwide). Once you know 국 means "country," a huge slice of Korean geography and identity vocabulary opens up.
Quick check — did that land?
1. What does the hanja root 국 (國) mean?
한국, 전국, 국내, 외국. What's the common among them?
Words Built on 국
| Word | Breakdown | Meaning |
|---|---|---|
| 한국 (hanguk) | 한(Han/Korea) + 국(country) | Korea |
| 외국 (oeguk) | 외(outside) + 국(country) | Foreign country |
| 외국인 (oegugin) | 외국(foreign country) + 인(person) | Foreigner |
| 전국 (jeonguk) | 전(whole/entire) + 국(country) | The whole country, nationwide |
| 미국 (miguk) | 미(America) + 국(country) | The United States |
| 중국 (jungguk) | 중(middle) + 국(country) | China |
| 애국 (aeguk) | 애(love) + 국(country) | Patriotism |
| 국어 (gugeo) | 국(nation) + 어(language) | The national language (Korean, in a Korean context) |
| 국민 (gungmin) | 국(nation) + 민(people) | Citizens/the people of a nation |
| 국제 (gukje) | 국(nation) + 제(between/among) | International |
See also: 실(室): One Hanja Root, Every Kind of Room
외국인: A Word You'll Hear About Yourself
외국인 (oegugin, "foreigner") is built from 외국 (foreign country) plus 인 (person) — the same 인 that appears in 대학생-adjacent vocabulary generally for "person." It's a neutral, descriptive term in everyday use, not an insult, though tone and context always matter as with any label.
저는 외국인이에요.
jeoneun [oegugin-ieyo](i-ga).
I'm a foreigner.
Country Names Follow the Same Pattern
Notice 한국, 미국, 중국 all end in 국 — Korean builds most country names by combining a shortened form of the country's name with 국. This pattern extends further: 영국 (England/UK), 독일 isn't 국-based (an exception worth knowing exists), but the vast majority of major countries follow the X + 국 formula.
Common Mistakes
Mistake #1 — Assuming 국 only appears in the word for "Korea"
It's a fully productive root — 국 shows up across dozens of country and nation-related words, not just 한국.
Mistake #2 — Confusing 국어 (national/Korean language) with 한국어 (the Korean language, unambiguous)
국어 specifically means "national language" in context — Koreans use it to mean Korean because they're speaking about their own country; 한국어 is the unambiguous term for learners and foreigners to use.
Mini Quiz
2. What is 외국인?
3. What does 전국 mean?
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