Yunhanam it's a term of endearment that an older girl calls a younger boy.
They are commonly referred to as "cougars" when older women date younger men.
For malesolder sister is 누나 noonaolder brother is hyung.For femalesyour older brother is 오빠 oppayour older sister is 언니 eonni.
Unni is what a younger female would call a woman older than herself and Noona is what any male would call a woman older than himself
If your a girl and another girl is older then you, you call them Unnie. It does not matter if the girl is a sibling, cousin, or friend they are still known as Unnie. Unnie means that if your a girl and another girl is older then you simply call her Unnie
'Cougar' is the common slang term used for an older woman who dates a younger man. The man in the relationship can sometimes be referred to as the 'cub' but the term is not quite as prevalent.
it's not really mean younger people but in japan, call older people senpai and call younger people kouhai.
little brother
The wife of your brother (younger or older than you) is your sister-in-law.
Friends and family of the man look down apon the idea of dating down and men are shallow people who care what other people think so they just dont do it. Lately boys haven't had much problem dating younger girls. Watch TV shows and you'll see mostly the boy goes for the younger girl, because they don't like older girls (Which is sexist or wateva u call it)
noona for elder sister 누나- that is how you right it
sister = sahodari older sister = chechi younger sister = anujathi
a tramp lol