문상이 · 문상을
condolence call, paying respects to the bereaved
Example
회사 동료의 아버지가 돌아가셔서 문상을 다녀왔어요.
A coworker's father passed away, so I went to pay my respects.
Word parts
문 ask, visit+상 mourning
Literally 'visiting the mourning' — calling on a grieving family.
Good to know
Common phrase: 문상을 가다. 조문 means nearly the same and is more common in news.