If u mean how is it spelled in Korean, it's 여동생. 동생 means little brother (see there's no "여" which pretty much means female), but is often also used as little sibling. So the older brother would say that so and so is my 동생, regardless of the gender.
older sister
yeo-dong-saeng
noona for elder sister 누나- that is how you right it
For malesolder sister is 누나 noonaolder brother is hyung.For femalesyour older brother is 오빠 oppayour older sister is 언니 eonni.
Older sister coming from a female - "Eon-nie" Older sister coming from a male - "Noo-na" Younger sister coming from both gender - "Dong-saeng"
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
A younger brother or sister is 동생 (dong-saeng). If you are a girl, your older sister is 언니 (eon-ni) and your older brother is 오빠 (oppa). If you are a boy, your older sister is 누나 (noona) and your older brother is 형 (hyung).
Older Sister (addressed by female).
In Hawaiian, you would refer to your little sister as "kaikaina," which means "younger sibling."
Your little sister can be taller than you when she's older. If your sister takes after your dad and you take after your mother, you may be shorter than your sister as you get older.
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.
"Uni" does not have a specific meaning in Korean. It may be a transliteration of a foreign word or acronym used in a specific context.
Amu is the older sister. Ami is the little sister.