Resyllabification 연음: When Batchim Slides Over

You have learned to read a syllable block and to hear its final consonant. Now comes the rule that turns robotic, block-by-block reading into natural Korean — and it is the one thing that makes beginners sound like beginners when they skip it. The rule is called 연음 (resyllabification, or linking), and once it clicks you will read across word boundaries the way a Korean actually speaks. The whole idea is this: a final consonant does not stay in its own block when a vowel follows — it slides over to become the first sound of the next syllable.

The empty onset that pulls the batchim over

Every Korean syllable block needs an onset in the first slot. When a syllable sounds like it begins with a vowel — 아, 어, 이, 을, 에 — that slot is not really empty; it is filled by ㅇ, which is silent in the onset position. Silent means the slot is, in speech, a vacancy waiting to be filled. So when the previous block ends in a consonant, that consonant is pulled forward to fill the vacancy.

Look at 한국어. On the page the blocks are 한·국·어. But 어 has only a silent-ㅇ onset, so the ㄱ of 국 slides over to fill it: you say [한·구·거], not "han-guk-eo." The written boundary falls between 국 and 어; the spoken boundary falls between 구 and 거. That gap between what you see and what you say is the entire rule.

음악 is written 음·악 but spoken ㅁ of 음 slides into the silent onset of 악. Say it out loud — [으막] flows; "eum-ak" clunks.

Particles trigger it constantly

Here is why this rule is not an occasional curiosity but something you meet in nearly every sentence: Korean's grammatical particles almost all begin with a vowel — 이, 은, 을, 에, 에서, 으로. Every time you attach one, it offers a silent-ㅇ onset for the preceding noun's batchim to slide into. So the linked form is the normal form; the bare noun is the exception.

이름 + 이 → [이르미]. 집 + 에 → [지베]. 책 + 을 → [채글]. In each case the noun's final consonant leaves its own block and starts the particle's syllable. Notice too that 읽어 → a cluster batchim links, sending its hidden second member over (this is the reservoir behavior from the double-batchim page).

Linking undoes neutralization

This is the subtle payoff. On the seven-sounds page you learned that a batchim like ㅅ, ㅈ, or ㅊ neutralizes to a plain [t] when it sits at the end before silence: 옷 alone is [옫]. But the moment a real vowel follows, neutralization is cancelled — because the consonant is no longer at the end of anything. It has slid into the next syllable's onset, where it is pronounced in full.

Bare 옷 is [옫], but 옷이 is [오시], not "[옫이]": the underlying ㅅ resurfaces intact because it now onsets 이. The linked form reveals the noun's true final consonant, which the bare form hides.

맛있어요 links twice and lands on [마시써요]. This is exactly why particle-attached forms are the ones that teach you a word's real ending — a point developed on the liaison preview.

English does the opposite — that's the interference

English orthography is comparatively phonetic and English speakers are trained to read one written unit at a time, so the instinct is to pronounce each Korean block as a sealed box: 한 / 국 / 어. That instinct produces a hard little pause at every block boundary and a batchim that refuses to move — the single most recognizable "foreign reading" pattern in Korean. English actually does link across word boundaries in fast speech ("an apple" → "a-napple," "turn it off" → "tur-ni-toff"), so the mechanism is not foreign to your mouth; you simply have to let it fire inside and between Korean words, guided by the batchim rather than resisted by the block.

눈 + 이 → [누니]; 밖 + 이 → [바끼]. Let the consonants glide forward and the sentence flows; freeze them in their blocks and it stutters.

Common Mistakes

1. Reading each block as a sealed unit. The core error: pronouncing 한국어 as "han-guk-eo" with the ㄱ trapped inside 국.

2. Failing to link a noun to its particle. 집에 is one flowing unit [지베], not "jip … e" with a pause.

3. Keeping the neutralized sound before a vowel. Learners neutralize 옷 to [옫] and then wrongly carry that [t] into the linked form.

4. Inserting a glottal stop before a vowel-initial syllable. English likes to pop a tiny catch before a stressed vowel; in Korean that catch blocks the link. Let the batchim flow straight in — 책을 is [채글], seamless.

Key Takeaways

• A final consonant slides forward to fill the silent-ㅇ onset of a following vowel: 한국어 → [한구거], 음악 → [으막].
• Written syllable boundaries ≠ spoken ones. Read for sound, not for squares.
• Because particles start with vowels (이/은/을/에/에서), linking happens in almost every sentence — the linked form is the default.
• Linking undoes neutralization: 옷 [옫] but 옷이 [오시]. The particle form reveals a noun's true final consonant.
• This is the beginner's teaser; the complete rule, cross-word behavior, and its interactions with other sound changes live in the Pronunciation group and the liaison preview.