Korean Spelling Rules: Lessons and Practice

Listen to two forms that sound identical and are spelled differently.

What Are Korean Spelling Rules?

Korean spelling rules are the standards for writing Hangul words correctly, and they are published as the Hangul Orthography (한글 맞춤법). The first article states the principle: write the standard language by sound, but follow grammar. That means 값이 is written with the root 값 intact even though it is said [갑씨].

Spelling is a different skill from pronunciation and from spacing. Pronunciation asks how a word sounds, spacing asks where the spaces go, and spelling asks which letters to write. A word can be pronounced right and still be spelled wrong, which is why the section exists.

The lessons here cover the mistakes that learners and Koreans make most often. They do not cover every rule in the orthography. The Korean pronunciation rules explain why many spellings differ from sounds, and the Korean spacing rules section covers the spaces.

Where to Start with Korean Spelling Rules

Choose a starting point from your situation.

If you are not sure which mistake you make, start with the first row and follow the study order below.

What Is the Main Spelling Principle?

The main principle is to write by sound while keeping the grammatical form of each part visible. The lesson Korean spelling principles states the principle and explains two examples where spelling differs from sound, such as 값이 [갑씨]. Read it first: every pair below applies the same idea.

Which Pairs Sound the Same but Are Spelled Differently?

Six pairs sound the same or nearly the same. Each lesson gives a short test.

• 되 vs 돼: replace the word with 하 or 해. If 하 fits, write 되. If 해 fits, write 돼. Example: 안 돼요.
• 안 vs 않: if -지 comes right before, write 않, as in 먹지 않아요. Otherwise write 안, as in 안 먹어요.
• 에요 vs 예요 vs 이에요: a noun with a final consonant takes 이에요 (책이에요), and a noun without one takes 예요 (의사예요).
• 며칠 vs 몇 일: 며칠 is the only spelling for "what day", while 몇 월 keeps 몇 for "what month".
• 왠 vs 웬: 왠지 is the only word with 왠, and every other case is 웬, as in 웬일.
• 로서 vs 로써: 로서 gives status or role (선생님으로서), and 로써 gives means or material (말로써).

Which Spellings Differ from Their Sound?

Three lessons deal with spelling that cannot be read off the sound.

• Korean final consonant homophones: 낫, 낮, 낯 and 낱 are all [낟] alone, and a vowel suffix such as 을 reveals the real letter.
• ㄹ게 vs ㄹ께: 할게 is spelled with ㄱ although people say [할께].
• Sai siot spelling: a linking ㅅ appears in compounds such as 냇가 and 햇빛.

Which Tools Check Spelling?

Spell checkers find many errors, but they have limits. The lesson Korean spell checker gives a seven-step method and a test text with seven planted errors, and shows which corrections to accept or question. The walkthrough Naver Hangul spell checker covers one popular tool step by step. Neither replaces the tests above, because a checker cannot know which real word you meant.

Comparing the Korean Spelling Rules Lessons

The table compares what each lesson fixes. Times are rough estimates for a first read-through, not measured averages.

How Do You Practise Korean Spelling Rules?

Practise in three steps: read the lesson, take its quiz, then write five sentences of your own with the pair. Use the ten-item mixed quiz below to find out which lesson to revisit first.

Each wrong answer points to one lesson in the table above. For listening practice on the same kinds of words, try the Korean word dictation with batchim exercise.

Study Order at a Glance

1. Korean spelling principles: the idea behind the rules.
2. 되 vs 돼, 안 vs 않 and 에요 vs 예요 vs 이에요: the three most frequent ending pairs.
3. 며칠 vs 몇 일, 왠 vs 웬 and 로서 vs 로써: word pairs.
4. Korean final consonant homophones, ㄹ게 vs ㄹ께 and Sai siot spelling: spelling that differs from sound.
5. Korean spell checker: check a finished text.

Audio, Review Status and Scope

This section on Korean spelling rules was reviewed and signed off by Min-ji Park on 15 October 2026. The Korean text, spoken forms and Revised Romanization on these pages were reviewed and signed off by Min-ji Park on 15 October 2026, and Revised Romanization is a learning aid only.

The section teaches the most common rules in everyday writing. It does not list every rule in the Hangul Orthography. The National Institute of Korean Language updates its standard-word list and spelling decisions from time to time, so check the current Standard Korean Language Dictionary (표준국어대사전) entry when a word is in doubt.

Related Sections

• Korean pronunciation rules: why many spellings differ from sounds.
• Korean spacing rules: where the spaces go.
• Korean writing: the parent hub for typing, spacing, spelling and messages.

Frequently Asked Questions

What are the most common Korean spelling mistakes? The most common mistakes involve words that sound alike. Examples are 되 and 돼, 안 and 않, 며칠 and 몇 일, 할게 and 할께, and the contraction 됐 written as 됬. Each lesson in this section isolates one pair and gives a quick test so you can choose the right spelling without memorising grammar terms.

Do native speakers confuse these too? Yes. Korean writers also mix up pairs such as 되 and 돼 or 안 and 않, because the sounds are the same or very close. The tests in this section work for them as well. The difference is that Korean writers have heard the correct forms all their lives, while learners need a rule to lean on.

Is there a Korean spell checker? Yes. Several free tools check spelling and spacing in pasted Korean text. They catch many mistakes but miss real words used in the wrong place, such as 낫 written for 낮. The Korean spell checker lesson explains how to use one, and the Naver spell checker guide walks through that tool in detail.

Should learners care about spelling? Yes, from the A2 level. Correct spelling makes messages, emails and school or work forms clear, and it helps you recognise words when you read. Perfect spelling is not needed for early conversation, but the pairs in this section are common enough that a few hours of practice pays off quickly.