Korean Family Words: Complete Vocabulary with Hangul and Romanization

Q: What is the difference between 엄마 and 어머니?

Both words mean mother, but they differ in formality and context. 엄마 (eomma) is casual and affectionate, comparable to mom or mommy in English. Children use it, and adults use it when speaking informally about their mother at home. 어머니 (eomeoni) is more formal and respectful, comparable to mother. You would use this in polite conversation, when addressing someone else's mother, or in formal writing. The same distinction applies to 아빠 (appa, dad) and 아버지 (abeoji, father). In Korean culture, using the formal form is a sign of respect, especially in public or professional settings. Adult Koreans often switch between the two depending on who is present in the conversation.

KoreanBy FluentFlash Research Team·Updated 2026-04-30

Family vocabulary sits at the heart of Korean language and culture. Family plays a central role in Korean society, and the language reflects this by offering separate words for older and younger siblings, paternal and maternal relatives, and different terms based on the speaker's gender.

What seems complex at first reveals a beautiful insight into how Koreans think about relationships. Below you will find more than 20 Korean family words organized by immediate family, extended family, and in-laws. Each entry includes Hangul, romanization, and example sentences.

You will notice that many family terms have both a casual and formal version. For example, 엄마 (eomma, mom) and 어머니 (eomeoni, mother). Choosing the right form depends on who you are speaking to and the context.

FluentFlash uses AI-powered spaced repetition to help you internalize these relationship terms quickly. Study the lists below, then commit them to long-term memory with our free flashcard tool.

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Immediate Family Members

These are the most common family words in Korean, used in everyday conversation. Notice how siblings have different terms depending on the speaker's gender. This is one of the most distinctive features of Korean family vocabulary.

Casual and Formal Terms

You will use 엄마 (eomma, mom) and 아빠 (appa, dad) at home or with close family. Switch to 어머니 (eomeoni, mother) and 아버지 (abeoji, father) in formal settings or when speaking respectfully.

Sibling Terms by Speaker Gender

This system is unique to Korean. Women use 오빠 (oppa) for older brother and 언니 (eonni) for older sister. Men use 형 (hyeong) for older brother and 누나 (nuna) for older sister. Younger siblings stay the same regardless of speaker gender: 남동생 (namdongsaeng, younger brother) and 여동생 (yeodongsaeng, younger sister).

Common Immediate Family Vocabulary

가족 (gajok, family) - "우리 가족은 네 명이에요." (My family has four people.)
엄마 (eomma, mom - casual) - "엄마, 어디 가세요?" (Mom, where are you going?)
어머니 (eomeoni, mother - formal) - "어머니께서 요리를 하세요." (My mother is cooking.)
아빠 (appa, dad - casual) - "아빠가 집에 왔어요." (Dad came home.)
아버지 (abeoji, father - formal) - "아버지께서 신문을 읽으세요." (My father is reading the newspaper.)
부모님 (bumonim, parents - formal) - "부모님을 사랑해요." (I love my parents.)
형 (hyeong, older brother used by males) - "형이 키가 커요." (My older brother is tall.)
오빠 (oppa, older brother used by females) - "오빠, 같이 가요." (Older brother, let's go together.)
누나 (nuna, older sister used by males) - "누나가 요리를 잘해요." (My older sister cooks well.)
언니 (eonni, older sister used by females) - "언니, 이거 예뻐요." (Older sister, this is pretty.)
남동생 (namdongsaeng, younger brother) - "제 남동생은 학생이에요." (My younger brother is a student.)
여동생 (yeodongsaeng, younger sister) - "여동생이 귀여워요." (My younger sister is cute.)

Term	Meaning	Pronunciation	Example
가족	Family	gajok	우리 가족은 네 명이에요. (Uri gajogeun ne myeongieyo.), My family has four people.
엄마	Mom (casual)	eomma	엄마, 어디 가세요? (Eomma, eodi gaseyo?), Mom, where are you going?
어머니	Mother (formal)	eomeoni	어머니께서 요리를 하세요. (Eomeonikkeseo yorireul haseyo.), My mother is cooking.
아빠	Dad (casual)	appa	아빠가 집에 왔어요. (Appaga jibe wasseoyo.), Dad came home.
아버지	Father (formal)	abeoji	아버지께서 신문을 읽으세요. (Abeojikkeseo sinmuneul ilgeuseyo.), My father is reading the newspaper.
부모님	Parents (formal)	bumonim	부모님을 사랑해요. (Bumonimeul saranghaeyo.), I love my parents.
형	Older brother (used by males)	hyeong	형이 키가 커요. (Hyeongi kiga keoyo.), My older brother is tall.
오빠	Older brother (used by females)	oppa	오빠, 같이 가요. (Oppa, gachi gayo.), Older brother, let's go together.
누나	Older sister (used by males)	nuna	누나가 요리를 잘해요. (Nunaga yorireul jalhaeyo.), My older sister cooks well.
언니	Older sister (used by females)	eonni	언니, 이거 예뻐요. (Eonni, igeo yeppeoyo.), Older sister, this is pretty.
남동생	Younger brother	namdongsaeng	제 남동생은 학생이에요. (Je namdongsaengeun haksaengieyo.), My younger brother is a student.
여동생	Younger sister	yeodongsaeng	여동생이 귀여워요. (Yeodongsaengi gwiyowoyo.), My younger sister is cute.

Extended Family Vocabulary

Extended family terms in Korean often distinguish between the paternal side (친가) and the maternal side (외가). These words appear frequently during major holidays like Chuseok and Seollal when families gather together.

Paternal and Maternal Grandparents

The prefix 외 (oe, meaning outside) marks maternal relatives. You will use 외할아버지 (oeharabeoji, maternal grandfather) and 외할머니 (oehalmeoni, maternal grandmother) when discussing your mother's parents.

Aunts and Uncles

Korean distinguishes aunts and uncles by which parent they come from. 삼촌 (samchon) is your father's brother, while 이모 (imo) is your mother's sister. 고모 (gomo) is your father's sister. This precision helps clarify family relationships in conversation.

Extended Family Terms

할아버지 (harabeoji, grandfather) - "할아버지께서 주무세요." (Grandfather is sleeping.)
할머니 (halmeoni, grandmother) - "할머니가 떡을 만드셨어요." (Grandmother made rice cakes.)
외할아버지 (oeharabeoji, maternal grandfather) - "외할아버지 댁에 가요." (I'm going to maternal grandfather's house.)
외할머니 (oehalmeoni, maternal grandmother) - "외할머니를 뵈러 가요." (I'm going to see maternal grandmother.)
삼촌 (samchon, uncle, father's brother) - "삼촌이 놀러 왔어요." (Uncle came to visit.)
이모 (imo, aunt, mother's sister) - "이모가 선물을 주셨어요." (My aunt gave me a present.)
고모 (gomo, aunt, father's sister) - "고모가 서울에 살아요." (My paternal aunt lives in Seoul.)
사촌 (sachon, cousin) - "사촌이 많아요." (I have many cousins.)

Term	Meaning	Pronunciation	Example
할아버지	Grandfather	harabeoji	할아버지께서 주무세요. (Harabeojikkeseo jumuseyo.), Grandfather is sleeping.
할머니	Grandmother	halmeoni	할머니가 떡을 만드셨어요. (Halmeoniga tteogeul mandeusyeosseoyo.), Grandmother made rice cakes.
외할아버지	Maternal grandfather	oeharabeoji	외할아버지 댁에 가요. (Oeharabeoji daege gayo.), I'm going to maternal grandfather's house.
외할머니	Maternal grandmother	oehalmeoni	외할머니를 뵈러 가요. (Oehalmeonireul bwoereo gayo.), I'm going to see maternal grandmother.
삼촌	Uncle (father's brother)	samchon	삼촌이 놀러 왔어요. (Samchoni nolleo wasseoyo.), Uncle came to visit.
이모	Aunt (mother's sister)	imo	이모가 선물을 주셨어요. (Imoga seonmureul jusyeosseoyo.), My aunt gave me a present.
고모	Aunt (father's sister)	gomo	고모가 서울에 살아요. (Gomoga seoure sarayo.), My paternal aunt lives in Seoul.
사촌	Cousin	sachon	사촌이 많아요. (Sachoni manayo.), I have many cousins.

Spouse, Children, and In-Laws

These terms are essential for discussing marriage, children, and in-law relationships. Korean distinguishes many roles with distinct vocabulary, reflecting the importance of family structure in the culture.

Husband and Wife

Use 남편 (nampyeon, husband) and 아내 (anae, wife) in most formal and informal contexts. These terms are straightforward and don't change based on gender or speaker.

Children and In-Laws

The in-law system is more complex and depends on whether you are the husband or wife. A wife calls her husband's mother 시어머니 (sieomeoni), while a husband calls his wife's father 장인어른 (jangineoreun). These relationships require respectful, formal language.

Family Relationship Terms

남편 (nampyeon, husband) - "제 남편은 회사원이에요." (My husband is an office worker.)
아내 (anae, wife) - "아내가 요리를 잘해요." (My wife cooks well.)
아들 (adeul, son) - "아들이 두 살이에요." (My son is two years old.)
딸 (ttal, daughter) - "딸이 학교에 가요." (My daughter goes to school.)
자녀 (janyeo, children - formal) - "자녀가 몇 명이에요?" (How many children do you have?)
시어머니 (sieomeoni, mother-in-law, husband's mother) - "시어머니가 친절하세요." (My mother-in-law is kind.)
장인어른 (jangineoreun, father-in-law, wife's father) - "장인어른을 뵈었어요." (I met my father-in-law.)

Term	Meaning	Pronunciation	Example
남편	Husband	nampyeon	제 남편은 회사원이에요. (Je nampyeoneun hoesawonieyo.), My husband is an office worker.
아내	Wife	anae	아내가 요리를 잘해요. (Anaega yorireul jalhaeyo.), My wife cooks well.
아들	Son	adeul	아들이 두 살이에요. (Adeuri du sarieyo.), My son is two years old.
딸	Daughter	ttal	딸이 학교에 가요. (Ttari hakgyoe gayo.), My daughter goes to school.
자녀	Children (formal)	janyeo	자녀가 몇 명이에요? (Janyeoga myeot myeongieyo?), How many children do you have?
시어머니	Mother-in-law (husband's mother)	sieomeoni	시어머니가 친절하세요. (Sieomeoniga chinjeolhaseyo.), My mother-in-law is kind.
장인어른	Father-in-law (wife's father)	jangineoreun	장인어른을 뵈었어요. (Jangineoreuneul bwoeosseoyo.), I met my father-in-law.

How to Study Korean Effectively

Mastering Korean requires the right study approach, not just more hours. Research in cognitive science shows that three techniques produce the best learning outcomes: active recall, spaced repetition, and interleaving.

Active recall means testing yourself on material rather than re-reading it. Spaced repetition schedules reviews at scientifically-optimized intervals. Interleaving mixes related topics rather than studying one in isolation. FluentFlash builds on all three.

Why Passive Review Fails

The most common mistake students make is relying on passive methods. Re-reading notes, highlighting passages, or watching videos feels productive. Studies show these methods produce only 10 to 20 percent of the retention that active recall achieves. Flashcards force your brain to retrieve information, which strengthens memory pathways far more than recognition alone.

Building a Practical Study Plan

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After 2 to 3 weeks of consistent practice, Korean concepts become automatic rather than effortful to recall.

Daily Study Steps

Generate flashcards using FluentFlash AI or create them manually from your notes
Study 15 to 20 new cards per day, plus scheduled reviews
Use multiple study modes (flip, multiple choice, written) to strengthen recall
Track your progress and identify weak topics for focused review
Review consistently. Daily practice beats marathon sessions.

1
Generate flashcards using FluentFlash AI or create them manually from your notes
2
Study 15-20 new cards per day, plus scheduled reviews
3
Use multiple study modes (flip, multiple choice, written) to strengthen recall
4
Track your progress and identify weak topics for focused review
5
Review consistently, daily practice beats marathon sessions

Why Flashcards Work Better Than Other Study Methods for Korean

Flashcards are one of the most research-backed study tools for any subject, including Korean. The reason comes down to how memory works. When you read a textbook passage, your brain stores that information in short-term memory. Without retrieval practice, it fades within hours. Flashcards force retrieval, which transfers information from short-term to long-term memory.

The Testing Effect

The "testing effect," documented in hundreds of peer-reviewed studies, shows powerful results. Students who study with flashcards consistently outperform those who re-read by 30 to 60 percent on delayed tests. This is not because flashcards contain more information. It is because retrieval strengthens neural pathways in a way that passive exposure cannot. Every time you successfully recall a Korean concept from a flashcard, you make that concept easier to recall next time.

FSRS Algorithm Optimization

FluentFlash amplifies this effect with the FSRS algorithm, a modern spaced repetition system. It schedules reviews at mathematically-optimal intervals based on your actual performance. Cards you find easy get pushed further into the future. Cards you struggle with come back sooner. Over time, this builds remarkable retention with minimal time investment.

Students using FSRS-based systems typically retain 85 to 95 percent of material after 30 days. Compare this to roughly 20 percent retention from passive review alone. The difference is dramatic and well-documented in learning science research.

Master Korean Family Words

Turn this family vocabulary into smart flashcards. AI-powered spaced repetition helps you remember every relationship term.

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Frequently Asked Questions

Why do Korean family words change based on the speaker's gender?

Korean distinguishes sibling terms by the speaker's gender because family relationships in traditional Korean culture are defined by both age and gender dynamics. A man calls his older brother 형 (hyeong) and his older sister 누나 (nuna). A woman calls her older brother 오빠 (oppa) and her older sister 언니 (eonni).

Younger siblings do not change based on speaker gender: 남동생 (younger brother) and 여동생 (younger sister) remain constant. This is because the social dynamic flips. Older siblings are addressed with respect markers by younger ones. This system helps clarify relational hierarchy in conversation.

Interestingly, 오빠 and 언니 are also used affectionately by close female friends to address slightly older women. 오빠 is famously used in K-pop fan culture as well.

What is the difference between 엄마 and 어머니?

Both words mean mother, but they differ in formality and context. 엄마 (eomma) is casual and affectionate, comparable to mom or mommy in English. Children use it, and adults use it when speaking informally about their mother at home.

어머니 (eomeoni) is more formal and respectful, comparable to mother. You would use this in polite conversation, when addressing someone else's mother, or in formal writing. The same distinction applies to 아빠 (appa, dad) and 아버지 (abeoji, father).

In Korean culture, using the formal form is a sign of respect, especially in public or professional settings. Adult Koreans often switch between the two depending on who is present in the conversation.

Why are there separate words for maternal and paternal relatives?

Korean has separate vocabulary for maternal and paternal extended family because traditional Korean society, influenced by Confucianism, placed strong emphasis on patrilineal lineage. The paternal side was historically considered the primary family line. Distinct vocabulary evolved to identify exactly where each relative falls.

For example, 고모 is specifically the father's sister, while 이모 is the mother's sister. 외할머니 is the maternal grandmother, while 할머니 or 친할머니 refers to the paternal grandmother. The 외 (oe) prefix means outside and marks maternal relatives.

Modern Korean families are more egalitarian, but the vocabulary remains in daily use. It is essential for clear communication about relatives during family events and holidays.

How do I address my Korean in-laws?

Korean has a detailed system for addressing in-laws, and the correct terms depend on whether you are the husband or wife. A wife addresses her husband's mother as 어머님 (eomeonim) in conversation. She refers to her as 시어머니 (sieomeoni) when talking about her. She addresses her husband's father as 아버님 (abeonim).

A husband addresses his wife's parents as 장인어른 (jangineoreun) for her father and 장모님 (jangmonim) for her mother. In-law terms are a place where Korean formality rules are particularly strict. Using the correct address is a sign of respect for the family.

If you are ever unsure, follow your spouse's lead and listen to how they address their own parents.

Why do Koreans always say "imnida"?

Yes. Fluency is achievable with the right study approach and consistent practice. The key is combining clear goals with proven study techniques. Spaced repetition using systems like FluentFlash's FSRS algorithm ensures you review information at optimal intervals for long-term retention.

Pair this with active recall through flashcards, and you will learn faster than with traditional study methods. The science is clear: testing yourself on material is far more effective than re-reading it. This is why FluentFlash is built on free, accessible study tools including AI card generation, all eight study modes, and the FSRS algorithm.

No paywalls, no credit card required, no limits on basic features. Most students who study consistently see meaningful progress within a few weeks.

Is it Unnie or Noona?

언니 (eonni) and 누나 (nuna) are both Korean words for older sister, but they are used by different people. 언니 (eonni) is used by females only to address an older sister or close older female friend. 누나 (nuna) is used by males only for the same purpose.

This distinction reflects how Korean tracks gender relationships within families. The speaker's gender changes which term is appropriate, not the age or relationship of the person being addressed. Both words carry affection and respect. Learning to use the correct term shows you understand Korean relationship dynamics.

What do Korean moms call their daughters?

Korean mothers typically call their daughters by their name, or use affectionate nicknames rather than a generic word for daughter. When referring to their daughter in a sentence, mothers use 딸 (ttal, daughter) or 우리 딸 (our daughter). In formal contexts, they might use 자녀 (janyeo, children).

Unlike English where mom and daughter are reciprocal, Korean uses different terms depending on who is speaking. The daughter calls her mother 엄마 (eomma) or 어머니 (eomeoni). The mother calls her daughter by name or a nickname. This reflects Korean's detailed attention to perspective and relationship roles in language.

Is it oppa or hyung?

오빠 (oppa) and 형 (hyeong) are both Korean words for older brother, but they are used by different people. 오빠 (oppa) is used by females only to address an older brother or a close older male friend. 형 (hyeong) is used by males only for the same purpose.

This is one of the most distinctive features of Korean family vocabulary. The speaker's gender determines which term is appropriate. Both words carry respect and affection. Learning to use the correct term is important for sounding natural in Korean conversation and showing respect for relationships.