Compound Vowels Part 1: 애 에 외 위 의

By the end of this lesson you can:

• Read and write the five compound vowel letters ㅐ ㅔ ㅚ ㅟ ㅢ (example syllables 애 에 외 위 의) and name the two jamo that form each one.
• Build and read syllable blocks that combine these vowels with consonants you already know, and hear the difference (or lack of it) between ㅐ and ㅔ.
• Read 9 real Korean words containing today’s vowels, including the three pronunciations of ㅢ.

TOPIK 1 skills: Reading Hangul (compound vowels).

Week 2 begins. These five vowels are made by combining two basic vowels. Once you see the logic, they stick immediately.

RECALL: Your 10 basic vowel letters: ㅏ ㅑ ㅓ ㅕ ㅗ ㅛ ㅜ ㅠ ㅡ ㅣ (written as syllables with ㅇ: 아 야 어 여 오 요 우 유 으 이). Before adding compound vowels, confirm you can read these instantly. Today’s vowels are built from these. Knowing the base makes the compounds obvious.

Part 1 · What Is a Compound Vowel?

Two vowels, one sound. Korean has 10 basic vowel letters. You learned them all in Week 1. But it also has 11 compound vowels, each formed by combining two basics. They look more complex on the page, but the logic is simple: the new shape is just the two component shapes merged together.

The pattern: ㅏ + ㅣ = ㅐ · ㅓ + ㅣ = ㅔ · ㅗ + ㅣ = ㅚ · ㅜ + ㅣ = ㅟ · ㅡ + ㅣ = ㅢ

In each case, a basic vowel picks up an ㅣ (i) and the two shapes merge into one letter.

Don’t worry about remembering the formula. Just focus on recognising and sounding out the five characters. The combinations will feel natural after a few days of exposure.

TIP: Week 2 overview: this lesson covers 5 compound vowels. Lesson 7 covers the remaining six (ㅘ ㅝ ㅙ ㅞ ㅒ ㅖ). After that, Lesson 8 tackles final consonants (받침) and Lesson 9 covers pronunciation rules. By Lesson 10 you will be able to read virtually any Korean word, even ones you’ve never studied.

Part 2 · Today’s Five Compound Vowels

Each row shows one compound vowel: how it’s formed, how it sounds, and the closest English equivalent.

TIP: 애 vs 에: don’t stress the difference. In textbooks these are listed as two distinct vowels. In real spoken Korean today, most people (especially those under 50) pronounce them identically. Focus on recognising both in writing. Your ears will naturally tune into any subtle difference with more listening exposure.

Part 3 · Seeing the Formation

Where does the shape come from? Each compound vowel inherits its shape from its two parent vowels: the base vowel stroke plus the extra line that represents ㅣ.

Part 4 · Building Syllables

These vowels slot into the same block shapes you learned in Lesson 4. ㅐ and ㅔ are vertical-style vowels: the consonant goes to the left, and the vowel goes to the right (개 네 세 배). ㅚ ㅟ ㅢ contain a horizontal element (ㅗ ㅜ ㅡ), so the consonant sits on top of that part, with the ㅣ stroke on the right (외 위 의).

Read each syllable aloud, then check your romanization in the Answer Key at the end of the lesson. (Syllable 6, 돼, sneaks in ㅙ, a Lesson 7 vowel, as a preview.)

1. 개 2. 네 3. 세 4. 메 5. 배 6. 돼 7. 위 8. 뒤 9. 의 10. 외 11. 애 12. 에

TIP: Block rule reminder: ㅐ and ㅔ behave like vertical vowels (like ㅏ ㅣ ㅓ). The consonant sits to their left inside the block: 개 네 세 배. ㅚ ㅟ ㅢ behave like the horizontal vowels they contain (ㅗ ㅜ ㅡ). The consonant sits on top, with ㅣ on the right: 외 위 의. If a final consonant (받침) is needed, it goes underneath everything (learned fully in Lesson 8).

Part 5 · Vocabulary: 9 Words

단어: words using today’s vowels. Each word features a compound vowel. Read the Korean aloud before checking the romanization.

Part 6 · Writing Practice

쓰기 연습: trace the compound vowels. Write each vowel alone first, then in a syllable block. Pay attention to how each compound vowel shape relates to its two parents.

CULTURE: Why Korean addresses go biggest to smallest. When Koreans write an address, they start with the country, then the city, then the district, then the street, and finally the building number, the exact opposite of Western convention. This reflects a broader cultural tendency to place the group or whole before the individual or part. You’ll notice a similar pattern in Korean names (family name first, given name second) and in sentences (time and location come before the verb). Learning Korean is partly learning a different way of organising information, and compound vowels like 의 (the possessive particle that links “X’s Y”) are your first tiny glimpse of that logic in action.

Homework

1. Write all five compound vowels from memory, ㅐ ㅔ ㅚ ㅟ ㅢ (애 에 외 위 의), with their romanization and parent vowels beside each. No peeking.
2. Combine each of today’s 5 vowels with 5 different consonants and write the resulting syllables. That’s 25 new syllable blocks. Work through them in your notebook.
3. Add today’s 9 vocabulary words to your flashcard deck. Pay special attention to 개 (dog), 네 (yes), and 위 (above). These appear constantly in everyday Korean.
4. Practice the ㅢ sound switch: say 나의 (na-ui) three times slowly, then say it at natural speed. Notice how it collapses to 내 (nae). This is something every Korean learner notices and remembers.
5. Review all flashcards from Lessons 1–5. Lesson 7 introduces the remaining compound vowels: ㅘ ㅝ ㅙ ㅞ (와 워 왜 웨) and the ㅒ/ㅖ pair. Arriving with the first five fresh in memory makes comparison easy.

Answer Key

Part 4 · Building Syllables: romanization