썸
sseom
The flirty stage before officially dating.
OriginFrom English “something” — as in “there's something between them.”
When to useAsking a friend about a crush.
CarefulCasual — fine with friends, out of place in formal writing or with your boss.
Examples
너 요즘 그 사람이랑 썸 타지?
You've got a thing going with that person, right?