Sino Korean Vocabulary: 50 Words with Romanization and Audio

Key facts

• Topic: Sino Korean vocabulary, meaning Korean words made from Chinese-derived syllables.
• Sino-Korean words are written in Hangul. You do not need hanja to learn them.

Sino Korean Vocabulary at a Glance

Korean has three layers of words. Native Korean words are the oldest, such as 사람 (saram, person) and 하늘 (haneul, sky). Sino-Korean words, called 한자어 (hanjaeo), were built from syllables borrowed from Chinese characters over many centuries. Loanwords, called 외래어 (oeraeeo), came later and mostly from English. In the Standard Korean Dictionary (표준국어대사전), kept by the National Institute of Korean Language (국립국어원), Sino-Korean words fill a very large share of the entries, and the share depends on how you count.

What counts as a Sino-Korean word? It is any word whose syllables each come from a Chinese-derived morpheme. Take 학교. The first syllable 학 (學) means study and the second 교 (校) means school. Korean speakers read these syllables with Korean sounds, so you see only Hangul on a sign or in a text. The character form, called hanja, is optional, and most daily writing leaves it out. If you want the characters behind a word, the Hanja word families hub teaches the same syllables through one character at a time, while this page stays with the word list.

The page sits in Korean Word Types next to Konglish and Loanwords and Onomatopoeia and Mimetic Words. Numbers have their own lessons: see Sino-Korean numbers for 일, 이, 삼.

Which Sino-Korean Words Should You Learn First?

Start with the school group, because 학교, 학생, 공부 and 시험 appear in the first weeks of almost every course. Then learn the people and place words, which you need to talk about your day. Words in the last two groups are slightly more formal. They are very common in news, offices and writing, so learn them once you can read the first three groups with ease.

• Say first. 학교, 학생, 공부, 친구, 전화, 시간, 음식.
• Know soon. 병원, 은행, 회사, 약속, 여행, 운동.
• Recognise in reading. 경험, 관계, 가능, 불편, 무료, 연세.

The scene below is a classroom with ten numbered items taken from the school group. Tap a number to hear the word.

Word · 10

1. 1

   학교

   Play

   hakgyo

   school

2. 2

   학생

   Play

   haksaeng

   student

3. 3

   교실

   Play

   gyosil

   classroom

4. 4

   공부

   Play

   gongbu

   study

5. 5

   시험

   Play

   siheom

   exam; test

6. 6

   숙제

   Play

   sukje

   homework

7. 7

   수업

   Play

   sueop

   class; lesson

8. 8

   질문

   Play

   jilmun

   question

9. 9

   대답

   Play

   daedap

   answer; reply

10. 10

    도서관

    Play

    doseogwan

    library

School and Study Words

School words are the best entry point to Sino-Korean vocabulary because the same syllables repeat. 학 shows up in 학교 and 학생, and 생 shows up in 학생 and 선생님. When two words share a syllable, learning one makes the other easier to remember. The note on each row tells you how the word sounds when it differs from its spelling.

Example Sentences

Each sentence uses a plain frame: topic or subject, then a short predicate. The particle 이 or 가 follows the noun (숙제가, 질문이), and 은 or 는 marks the topic (도서관은, 저는). A noun is followed by 이에요 after a consonant and 예요 after a vowel, as in 학생이에요 and 회사원이에요 (after a consonant) and 의사예요 (after a vowel). Play each sentence, say it aloud, then swap in another word from the table.

People and Family Words

Many words for people end in a Sino-Korean syllable that means a person: 인 in 한국인 and 외국인, 원 in 회사원, 사 in 의사. Spot the ending and you can guess the meaning of new words such as 미국인 (an American) or 공무원 (a civil servant). Family words like 가족 and 부모 are Sino-Korean too, while the words for father, mother and grandmother are native Korean.

Note that 선생님 is the title you add to a teacher's name or use alone. The ending 님 is a respectful suffix, so do not drop it when you speak to a teacher.

Places and Daily Life Words

Public places are almost always Sino-Korean: 병원, 은행, 공원, 공항, 지하철. Their endings tell you what kind of place it is. 원 points to an institution in 병원 (院) and to a garden in 공원 (園), 관 means a building, 항 means port, and 철 comes from the character for iron, as in railway. Once you know 관, 도서관 (library) and 박물관 (museum) are easy to guess.

Work and Ideas

These words describe work and mental life. Many take 하다 to become verbs: 준비하다, 연습하다, 사용하다, 여행하다. Add 하다 to the noun and conjugate 하다 as usual: 준비해요, 연습해요, 사용해요, 여행해요. The noun form stays Sino-Korean, and the grammar stays native. This pattern is the main way Korean turns foreign-origin nouns into verbs.

Common Sino-Korean Syllables

These twenty syllables appear in many common Sino-Korean words. Each syllable keeps a core meaning, although one sound can stand for more than one character, and the same syllable can sit at the start or the end of a word. 학 starts 학교 but ends 방학 (school vacation). The table lists the Hangul syllable, the hanja it comes from, its core meaning and three words that use it. The hanja are shown only to explain where a meaning comes from. You never need to write them to use the words.

Two rows share the sound 화: 火 (fire) and 話 (talk). Korean has many homophones among Sino-Korean syllables, so a single syllable can have several meanings. The words around it tell you which one is meant. 화요일 (Tuesday) uses fire, and 대화 (conversation) uses talk. This is why learners who memorise whole words, not isolated syllables, make fewer mistakes.

Word-Building Patterns

Beyond single syllables, Korean uses short Sino-Korean endings and beginnings to build words in bulk. If you know the pattern, a new word is often guessable. For example, 과학 (gwahak, science) plus 자 gives 과학자 (scientist), and 가능 (possible) with 불 in front gives 불가능 (impossible).

The prefix 불 changes in some words. It becomes 부 before ㄷ and ㅈ, as in 부정확 (bujeonghwak, inaccurate). Do not guess this one. Check each word the first time you meet it. The suffixes -적 and -성 are very productive, and they turn nouns into descriptive words: 기본적인 방법 (a basic method), 가능성이 있어요 (there is a chance). The fuller lesson is Sino-Korean prefixes and suffixes.

Sino-Korean vs Native Korean Choices

Sometimes Korean gives you two words for one idea, one native and one Sino-Korean. The Sino-Korean word is often more formal, more respectful or more technical. The table shows eight pairs you will meet early. The word you pick depends on who you are talking to and what kind of text you are writing. For a full comparison with rules of thumb and a sorting quiz, read Sino-Korean vs native Korean words.

Numbers follow the same two-layer idea. 세 명 (three people) uses a native number with the counter, and 삼 층 (third floor) uses a Sino-Korean number. Sino Korean vs native Korean numbers sets out which counter takes which system.

How Do You Pronounce These Words?

Sino-Korean words follow the same sound rules as native ones, with a few patterns you meet again and again. The Standard Pronunciation Rules (표준 발음법) published by the National Institute of Korean Language (국립국어원) are the reference, and the romanization follows the Revised Romanization of Korean.

• Tense consonants after a final stop. A plain ㄱ, ㄷ, ㅂ, ㅅ or ㅈ becomes tense after a final ㄱ, ㄷ or ㅂ (Article 23). 학교 is [학꾜], 학생 is [학쌩], 숙제 is [숙쩨], 약속 is [약쏙] and 식사 is [식싸]. Romanization does not show tensing caused by a neighbouring sound, so hakgyo stays hakgyo in writing.
• Final consonant moving forward. A final consonant moves to a following silent ㅇ. 한국인 is [한구긴], 외국인 is [외구긴] and 직업 is [지겁].
• ㄹ before ㄷ, ㅅ or ㅈ. In Sino-Korean words, a final ㄹ makes only a following ㄷ, ㅅ or ㅈ tense (Article 26): 발달 [발딸], 일시 [일씨]. It does not tense ㄱ, so 출금 (withdrawal) stays [출금].
• ㄹ after ㄴ. A ㄹ after ㄴ is said as ㄹ, so 편리 is [펼리].

Audio and Slow Playback

Each headword and each sentence has its own clip. The clips below replay five tricky words slowly. Play one, repeat it, then play it again and compare.

What Mistakes Do Learners Make with Sino-Korean Words?

Five mistakes come up often.

1. Using the honorific nouns for yourself. 성함 and 연세 are for other people. Say 제 이름은 민수예요 (My name is Minsu), not 제 성함은.
2. Counting people with the wrong numbers. Say 학생 세 명 (native number plus 명), not 학생 삼 명.
3. Reading 한국인 as two words. It is one word said as [한구긴], with the ㄱ moving forward.
4. Treating every syllable as one fixed meaning. Syllables such as 수, 화 and 대 have several meanings, so learn whole words with their examples.
5. Thinking you need hanja first. Daily Korean is written in Hangul. Learn the words in Hangul and add characters later if you want them.

The pronunciation errors are small, but they are the first thing a listener notices. Tense consonants matter most, so practise the five slow clips.

Practice: Flashcards and Worksheet

Run the deck in recognition mode until each word gives its meaning, then switch to listening mode and take the quiz. The deck holds all 50 words with audio, and your progress stays in your browser. The vocabulary flashcard decks page lists the other decks, and the Sino-Korean words flashcards deck is a separate 29-card set that shares some of these words.

A printable worksheet for these words (word list, matching, writing practice, fill-in-the-blank exercises and answer key) is available in A4 and US Letter from the download card on this page. For practice, write the ten school words from memory and add one example sentence for each.

Where to Go Next

Compare the two layers directly on Sino-Korean vs native Korean words. The affixes that form new words are taught in Sino-Korean prefixes and suffixes. For the characters behind the syllables, see Hanja word families. To go up a level, return to Korean Word Types, or move on to Konglish and Loanwords.

Frequently Asked Questions

What Is Sino-Korean Vocabulary?

Sino-Korean vocabulary means Korean words built from syllables that came from Chinese characters, such as 학교 (school) and 전화 (telephone). Koreans read these syllables with Korean sounds and write them in Hangul. In the Standard Korean Dictionary they make up a very large share of entries, and the exact share depends on how the words are counted.

Do I Need to Learn Hanja to Learn Sino-Korean Words?

No. Everyday Korean is written in Hangul, and you can learn every word on this page without knowing a single character. Hanja only help you see why a word means what it does. If you are curious, the hanja word-families pages teach the same syllables one character at a time.

How Can I Tell If a Korean Word Is Sino-Korean?

Look for a word of two or more syllables that follows a known pattern, such as an ending like -자, -성 or -화, or a school, office or news word. Many one-syllable nouns such as 책 (book) and 문 (door) are also Sino-Korean. The Standard Korean Dictionary marks the origin of each entry, so check it when you are unsure.

Are Sino-Korean Words More Formal than Native Korean Words?

Often, yes, but not always. Honorific nouns such as 연세 and 성함 are Sino-Korean and respectful, and abstract and technical words are mostly Sino-Korean. Everyday words like 학교 and 시간 are Sino-Korean but perfectly casual. Choose by how respectful or technical the situation is.

Why Do Some Sino-Korean Words Sound Different from Their Spelling?

Korean sound rules apply inside words. A plain consonant becomes tense after some final consonants, so 학교 is said [학꾜], and a final consonant moves to a silent ㅇ, so 한국인 is said [한구긴]. Revised Romanization does not mark tensing caused by a neighbouring sound, so use the audio as well as the romanization.

Is the Romanization on This Page Official?

It follows the Revised Romanization of Korean, which South Korea adopted on 7 July 2000 and whose rules the National Institute of Korean Language (국립국어원) publishes. It is a learning aid and does not mark every sound change, so rely on the Hangul and the audio.