Linking Sounds (연음화)
When a syllable ending in a consonant (받침) is followed by ㅇ, the final consonant moves to the next syllable.
Liaison (연음화) is the most common sound change in Korean and the reason intermediate learners often feel they 'can read but can't understand spoken Korean'. The rule is simple: when a syllable ending in a consonant 받침 is followed by a syllable starting with the silent ㅇ, the final consonant slides over and becomes the next syllable's initial consonant in pronunciation. Spelling does not change, only pronunciation.
Classic example: 한국어 (Korean language) is spelled han + guk + eo but pronounced han + gu + geo. The ㄱ of 국 slides over to the front of 어, making the second syllable sound like 'gu' and the third like 'geo'. Once you internalise this rule, vast amounts of natural Korean speech that previously felt 'fast' or 'slurred' resolve into something you can clearly parse. Practice with the example words in this lesson — read each word slowly first, then at natural speed, listening for the consonant shift.
연음화 — The Basic Rule
When a syllable ends in a consonant (받침) and the next syllable starts with ㅇ (silent), the 받침 moves to become the initial consonant of the next syllable. Written: 먹어요 [meok-eo-yo] → Spoken: [meo-geo-yo].
Double 받침 (겹받침) and 연음화
Some syllables have two final consonants (겹받침). When followed by ㅇ, usually the second consonant moves to the next syllable. 읽어요: 읽(ㄹㄱ) + 어요 → [일거요]. 앉아요: 앉(ㄴㅈ) + 아요 → [안자요].
How It Works
연음화 is the rule that makes the previous lesson's spellings pay off. A 받침 is unreleased only because nothing follows it. The moment the next syllable begins with ㅇ — which is silent and therefore leaves an empty initial slot — the final consonant slides forward to fill that slot and is released normally.
So 먹어요 is written 먹 + 어요, but spoken [머거요]: the ㄱ has moved into the empty position and becomes a fully released g between vowels. Nothing is added or deleted; a consonant simply changes which syllable it belongs to in speech. This is why Korean spelling keeps the underlying consonant rather than writing what you hear. 옷 is written with ㅅ even though it sounds like [옫] alone, because 옷이 reveals the ㅅ as [오시].
Double 받침 (겹받침) follows the same logic with one extra step. A syllable like 읽 carries two final consonants, ㄹ and ㄱ. In isolation only one of them can be pronounced, but when a vowel follows, the first stays in place and the second moves forward: 읽어요 → [일거요]. 앉아요 → [안자요]. The cluster is finally able to use both consonants because there are now two slots available.
Where You'll Hear It
연음화 is the single biggest reason spoken Korean does not match written Korean for beginners, and it applies to almost every conjugated verb. The polite ending -아요/-어요 begins with a vowel, so any verb stem ending in a consonant triggers the rule: 먹어요, 읽어요, 앉아요, 찾아요, 열어요, 닫아요. That is most of the verbs you will learn this year.
The same thing happens with particles. 밥을 is [바블], 집에 is [지베], 한국어 is [한구거]. Since particles attach to nouns constantly, learners hear these blended forms far more often than the careful syllable-by-syllable versions.
This is also why listening feels disproportionately hard at first. A learner who has memorised 먹다 and 읽다 from a vocabulary list may simply not recognise [머거요] and [일거요] as the same words. Nothing is wrong with their memory — they learned the written form and are now meeting the spoken one. Once 연음화 is internalised, a large amount of previously unintelligible speech becomes transparent at once.
Cultural & Language Note
연음화 is not a rule Koreans consciously apply — it is simply what happens when you speak at natural speed, the same way English 'did you' becomes 'didja'. This is why Korean spelling and pronunciation diverge: the writing system preserves the underlying form of each word so you can recognise it, while speech smooths the boundaries. Korean spelling is morphophonemic by design, a deliberate choice made when the modern orthography was standardised.
Common Mistakes to Avoid
Learners read 먹어요 syllable by syllable as 'meok-eo-yo' and it sounds robotic. It is 'meo-geo-yo' — the ㄱ moves across. The rule only applies before ㅇ, though: 먹다 stays 'meok-tta' because ㄷ is a real consonant, not a placeholder. Mixing this up and linking everywhere is as noticeable as never linking at all.
How to Practice This Lesson
Train the two forms side by side rather than replacing one with the other. Write the verb as spelled and as spoken, in two columns: 먹어요 → [머거요], 읽어요 → [일거요], 앉아요 → [안자요], 찾아요 → [차자요]. Read across the row, not down the column, so the link between the two becomes automatic.
The skill you actually need is producing the spoken form from the written one at speed, so set yourself a rule: never read a conjugated verb syllable by syllable, even when reading silently. Force the linking from the first encounter.
For 겹받침, do not try to memorise which consonant moves for every cluster at this stage. Learn the handful you will actually meet soon — 읽어요, 앉아요, 없어요 — as whole units, and let the general rule settle in later.