Korean Dictionary
How to say "Baby" in Korean
“Baby” in Korean is 아기 (pronounced "Agi").
아기
Agi
Usage & Context
A young child from birth to about two years old. Korean parents often use affectionate terms and baby talk when speaking to babies.
Example Sentence
아기가 울고 있어요.
The baby is crying.
How to use 아기 naturally
Quick answer
The Korean word for “Baby” is 아기, romanized as Agi.
Usage tip
Learn this word together with a complete Korean sentence. Meaning often depends on particles, politeness level, and word order.
Common mistake
Do not rely only on the English meaning. Read the Korean example sentence and notice the particles, word order, and politeness level around 아기.
What learners usually mean by “Baby in Korean”
Most people searching this are not only asking for the dictionary word. They are trying to tell whether 아기 means an infant, a cute child, a pet, or a romantic nickname.
Real usage
Use 아기 for an actual baby or very young child. Parents also use 우리 아기 warmly for their own child, and some people extend it to pets. For a romantic partner, 자기야 is usually more natural than calling someone 아기.
Avoid this mistake
Do not use 아기 as a blanket translation for English 'baby' in every affectionate sentence. In Korean it can sound childish, parental, or overly intimate depending on who is speaking.
Better pattern
For a real infant, use 아기. For 'my baby' to a partner, check 자기야 first. For a cute pet or child, 우리 아기 can sound affectionate.
literal infant
아기가 이제 막 잠들었어요.
The baby just fell asleep.
parent talking about a child or pet
우리 아기 오늘 병원 다녀왔어요.
Our little one went to the hospital today.
Pronunciation Guide
Pronounced 'ah-gi' — 'ah' like the sound at the doctor, and 'gi' like 'gee' in 'geese' but shorter. The 'g' is soft, almost between 'g' and 'k'.
Formal & Casual Forms
Casual (반말)
아가
aga
아가 is a cuter, more affectionate form used by parents and grandparents when cooing at a baby — think 'little one' or 'lil baby'.
More Example Sentences
A friend meeting your newborn for the first time
아기 좀 안아 봐도 돼요?
Can I hold the baby?
Excited parent messaging a group chat
우리 아기 첫 걸음마를 뗐어요!
Our baby took her first steps!
Quietly texting back during nap time
아기를 재우고 있어요.
I'm putting the baby to sleep.
Cultural Context
아기 is the general everyday word for 'baby' that Koreans use well beyond the newborn stage — sometimes into toddlerhood. Adults also playfully call their pets '아기' or '우리 아기' (our baby) as a term of endearment. The word extends into romantic contexts too: couples may call each other '아기' or 'baby' just like in English, though '자기야' (jagiya) is far more common.
Editorial note
We treat 'baby' carefully because Korean learners often mix the literal word for an infant with affectionate words used for a partner, child, or pet. This entry keeps the example sentence neutral so the meaning is clear before you try warmer, relationship-specific phrases.
Reviewed by Min-jung Park, Korean Language Teacher. Updated May 31, 2026. See our editorial standards.
Common Phrases
아기가 너무 예뻐요.
The baby is so pretty.
아기 몇 개월이에요?
How many months old is the baby?
아기가 웃고 있어요.
The baby is smiling.
Related Expressions
아가
aga
baby (endearing)
아기띠
agitti
baby carrier
분유
bunyu
baby formula
기저귀
gijeogwi
diaper
Frequently asked questions
How do I correctly pronounce 아기 (Agi) for "baby" in Korean?+
To correctly pronounce 아기 (Agi), focus on the two syllables. '아' (a) sounds like the 'a' in "father". '기' (gi) sounds like the 'gi' in "give". The 'g' sound is a soft 'g', not aspirated. Put it together: "Ah-gee". Practice saying it smoothly without emphasizing either syllable too much. The pronunciation is relatively straightforward for English speakers.
When is it appropriate to use 아기 (Agi) versus other words for "baby" or "child"?+
아기 (Agi) specifically refers to a very young child, typically from birth up to around two years old, much like "baby" in English. For slightly older children, other terms like 아이 (ai) for "child" or 어린이 (eorini) for "young child/kid" are more appropriate. While 아기 can sometimes be used endearingly for slightly older kids by parents, its primary meaning is infant.
Is 아기 (Agi) a formal or informal term, and how does its formality change?+
아기 (Agi) is generally a neutral to informal term used commonly in everyday conversation, especially within families. It's not considered highly formal or informal, but rather descriptive. When speaking to a baby, parents often use baby talk, which inherently makes the interaction informal. When referring to a baby in a formal setting, you would simply use 아기 (Agi) without adding honorifics.
What are some common affectionate terms or related words for "baby" in Korean?+
Beyond 아기 (Agi), many affectionate terms exist. 애기 (aegi) is a very common, slightly cuter variant often used by parents. Some may use 우리 아기 (uri agi), meaning "our baby," to express endearment. Darling or sweetheart equivalents include 내 새끼 (nae saekki), though this can be very informal and only used among very close family, or 귀염둥이 (gwiyeomdung-i) meaning "cutie pie."
Are there any common mistakes foreigners make when using 아기 (Agi) in conversation?+
A common mistake is using 아기 (Agi) for children who are clearly past the infant stage. While some parents might affectionately call their toddler "아기," it's generally best to use 아이 (ai) or 어린이 (eorini) for kids older than two. Another potential mistake is trying to add honorifics to 아기, which isn't necessary as 아기 itself refers to a non-sentient being in terms of social hierarchy.
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