For more information, Boy to: -older boy: hyung -older girl: noona Girl to: -older boy: oppa -older girl: unni :)

Dongsaeng would be a younger sibling or someone younger than you. Hyung is what a boy would use to address a boy older than him or an older brother.

hyung = What boys say to older brothers or boys older than themselves dongsaeng = younger siblings :)