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국(國): One Hanja Root, Every Country Word

Written and reviewed by Jun and Jin, native Korean speakers

Published · How we write & review

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. 1. What does the hanja root 국 (國) mean?

한국, 전국, 국내, 외국. What's the common among them?

Words Built on 국

WordBreakdownMeaning
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 short questions — about 1 minute

  1. 2. What is 외국인?

  2. 3. What does 전국 mean?

Part of Korean Hanja Roots: One Character, Ten Words

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