동생, 잘 지내? (dong-saeng, jal ji-nae?)
여동생 = sister
It is Sister in Korean ^-^
noona for elder sister 누나- that is how you right it
Older sister coming from a female - "Eon-nie" Older sister coming from a male - "Noo-na" Younger sister coming from both gender - "Dong-saeng"
바쁘세요 = are you busy
Older sister but it doesn't have to be your real sister. it could be any older girl that you consider her as close to a sister
There are some but not many words that can be used in place of small sister. Younger sister can be used in place of small sister. As can little sister.
dangsin-ui yeodongsaeng eul mesinjeo
Older Sister (addressed by female).
yeo-dong-saeng
Noona is a Korean term used by males to address an older female sibling or friend. It is used to show respect to an older female.
Its korean for Small mind.