oppa
Also written: oppa; oba
A Korean kinship and address term used by a female speaker for an older brother, older male relative, or an older male with whom she has an accepted close relationship.
Literal meaning
older brother or older male, used by a female speaker
Cultural context
Korean forms of address encode age, gender, intimacy, and social position. Oppa can be literal family language, but it may also be used for a trusted older male friend or romantic partner after the relationship is close enough for the term to feel natural.
How dramas use it
A female character may shift from a name, title, or seonbae to oppa as emotional distance closes. The first use can signal affection, trust, teasing, dependence, or a newly acknowledged romance.
Usage & formality
The speaker is female and the person addressed is male and older. It is not a universal word for boyfriend, and viewers should not assume romance without context.