Family
가족
Gajog
Parents
부모
Bumo
Dad
아빠
appa
Mom
엄마
eomma
Father
아버지
abeoji
Mother
어머니
eomeoni
Little Sister
동생
Dongsaeng
Big Sister (for the guy say)
누나
nuna
Big Sister (for the girl say)
언니
eonni
Little Brother
동생
dongsaeng
Big Brother (for the guy say)
형
hyeong
Big Brother(for the girl say)
오빠
oppa
Uncle
삼촌
samchon
Aunt
숙모
sugmo
Grandpa
할아버지
hal-abeoji
Grandma
할머니
halmeoni
Cousin
사촌
sachon
related article : korean greeting