Korean Sound Change Dictation: Practice Set with Answer Key

What you will learn

• Write the correct spelling of at least 17 of 20 words whose spelling and sound differ.
• Name the sound-change rule behind each word.
• Stop spelling by sound.

Before you start: know the sentence dictation for beginners basics and have met the Korean pronunciation rules. Time: about 30 minutes with audio.

Key Facts

• 국물 is spelled with ㄱ but spoken [궁물], an example of nasalization.
• 좋아요 is spoken [조아요] because ㅎ is silent before a vowel.
• 같이 is spoken [가치], but the spelling keeps ㅌ.
• 학교 is spoken [학꾜], and the tense sound is never written.
• Seventeen correct out of twenty is the target for this set.

Last updated: 2026-10-09. The Korean text, romanization and audio scripts on this page are generated drafts that still await review by a Korean specialist.

What Is Korean Sound Change Dictation?

Korean sound change dictation is dictation in which the spoken form of a word differs from its written form. A sound change is a rule that alters how letters are pronounced when they meet, such as ㄱ turning into [ㅇ] before ㅁ. The Standard Pronunciation Rules (표준 발음법) of the National Institute of Korean Language (국립국어원) list these rules.

In this set you hear [궁물] and must write 국물. That direction is the reverse of pronunciation lessons, where you read the spelling and predict the sound. It trains the sound-to-spelling skill that real writing needs. The next section explains why that skill is hard.

Why Is This Hard for English Speakers?

English speakers expect the spelling to follow the sound. Korean spelling does the opposite: it shows the word parts, and the sound changes stay hidden. The result is the spelling-by-sound habit, where a learner hears [가치] and writes 가치 instead of 같이.

Two things help. First, the sound change is predictable: the spelling carries a trigger such as a final ㄱ before ㅁ. Second, most words in this set are common, so you can check them against a word you know. The set below uses both ideas.

How Does the Set Work?

The set has 20 words in six rule groups, and the groups are hidden until the answer key so that you cannot guess from order.

1. Play the word once without writing.
2. Play it again and write the spelling in Hangul.
3. Ask yourself: "What is the base word, and what changed?"
4. Write your final answer and move on.
5. After word 20, open the key and mark each answer.

Two items have a sound-alike word, so here is a meaning hint for each. Item 1 means "the flower" with a subject particle, not 꼬치 (skewer). Item 16 means "together", not 가치 (value).

Words 1 to 10 come first.

Listen: Items 1 to 10

Each clip is one word. Write only the spelling.

Words 11 to 20 add ㅎ, palatalization and liquidization.

Listen: Items 11 to 20

Keep the same method: base word first, change second.

Write all 20 before you open the key.

Answer Key and Scoring

Mark a word correct only if the spelling matches exactly. The Rule column names the lesson to review for any miss. Revised Romanization (RR) is a learning aid and follows the sound.

Count your score, then count misses per rule.

These bands are this lesson's own guide, not a standard scale. The next section tells you what to do with the misses.

What Should I Do after a Low Score?

After a low score, count your errors by rule and fix the largest group first. Two or more misses in one group means that group needs a lesson, not more luck. Use these links.

• Liaison (items 1 to 3): Korean liaison.
• Nasalization (4 to 7): Korean nasalization.
• Tensification (8 to 11): Korean tensification.
• Silent ㅎ and aspiration (12 to 15): Korean ㅎ weakening and Korean aspiration.
• Palatalization (16 to 18): Korean palatalization.
• Liquidization (19 and 20): Korean liquidization.

Repeat the set after one day. The worked example shows the thinking for one word.

Worked Example: 국물 [궁물]

The word 국물 (broth) is a compound of 국 (soup) and 물 (water, liquid). It is spoken [궁물]. Follow the steps.

1. Hear the sound: [궁물]. You hear ㅇ, then ㅁ.
2. Ask for the base word: a word ending in [궁] followed by 물 is unusual. Try the known word 국 (soup) plus 물.
3. Name the trigger: the final ㄱ of 국 meets the nasal ㅁ of 물. Nasalization turns the stop [ㄱ] into [ㅇ] before ㅁ.
4. Write the base word: 국 + 물 = 국물.
5. Check: read 국물 aloud. The rule predicts [궁물], so the spelling is consistent.

You will know it worked when the final of your first block is ㄱ, not ㅇ. The same four moves (hear, find the base word, name the trigger, write the base) solve every item in the set. The common errors follow.

What Mistakes Do Learners Make Here?

Learners often trust the ear over the dictionary form. The mistakes below come from that.

• Mistake 1: 궁물 for 국물. Learners often write the sound. Actually the spelling keeps the base word, because Korean spelling shows word parts.
• Mistake 2: 학꾜 for 학교. Learners often write ㄲ because they hear tension. Actually tensification is a spoken change only, and the tense sound is never written here.
• Mistake 3: 가치 for 같이. Learners often write the sound they hear. Actually 가치 is a different word ("value"), so spelling by sound can change the meaning.
• Mistake 4: 조아요 with a missing ㅎ. Learners often drop the ㅎ because they cannot hear it. Actually 좋다 is the base, and the ㅎ is only silent before a vowel.
• Mistake 5: a final ㄴ in 신라. Learners often keep ㄴ because the sound [ㄹ] seems wrong. Actually the spelling 신라 stays, and the sound is [실라] by Article 20.

Expert tip: when two spellings are possible, say the longer word the slow way, 신 + 라, and the base letters show up. Practise that with the next exercise.

Practice and Answer Key

Write the spoken form for each spelling, then write the rule name.

1. 국물
2. 학교
3. 좋아요
4. 같이
5. 설날

Answer key

1. 국물 → [궁물], nasalization
2. 학교 → [학꾜], tensification
3. 좋아요 → [조아요], silent ㅎ
4. 같이 → [가치], palatalization
5. 설날 → [설랄], liquidization

Four or five correct means you can name the rule and write the spelling. Next, plan your return.

Where to Go Next

After Korean sound change dictation, build speed in listening strategies, which show how these rules help in real speech. To practise hearing the contrasts before writing them, try Korean minimal pairs. For the first dictation sets, go back to Korean Sentence Dictation for Beginners, and open the full Korean Dictation hub for every set in order.

This set covers 20 words in standard Seoul pronunciation. It does not cover every exception, such as words with inserted ㄴ or ones with allowed variants.

Frequently Asked Questions

Why do I write 궁물 instead of 국물? Because you spelled by sound. 국물 (broth) is spoken [궁물], since the final ㄱ turns into ㅇ before the nasal ㅁ, but the spelling keeps the dictionary form 국 + 물. Korean spelling shows the parts of a word, so the written ㄱ stays. Spelling by sound is the most common error in this set.

How is 같이 spelled? 같이 (together) is spelled with ㅌ and 이, and it is spoken [가치]. The final ㅌ meets the vowel 이 inside the same word, and the standard pronunciation rules (Article 17) turn it into ㅊ. Writing 가치 gives a different word meaning 'value', so the spelling matters.

Which rule changes 학교? Tensification changes 학교, which is spoken [학꾜]. After the final ㄱ (a stop), the plain ㄱ of 교 becomes tense ㄲ. This happens in speech only. The spelling stays 학교, and Revised Romanization writes hakgyo, so the tense sound is not marked in either form.

How do I know when ㅎ is silent? A final ㅎ, alone or in ㄶ and ㅀ, is silent before an ending or suffix that starts with a vowel, as in 좋아요 [조아요] and 많이 [마니] (Article 12). Before ㄱ, ㄷ or ㅈ it joins the next consonant into an aspirated sound, as in 좋다 [조타]. When you hear a missing consonant in a verb, suspect a silent ㅎ.

How many words should I get right? Seventeen out of twenty is the target. That target is this lesson's own guide, not an official score. Each miss in the key points to one rule lesson, so count misses per rule. Two misses in the same rule mean you should read that rule page and repeat the set after one day.

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