A condolence visit — going to the bereaved family or a funeral to express sympathy.
先週、親戚の家へ弔問に行った。
Last week I went to a relative's house to offer my condolences.
葬儀には出られないので、後日弔問に伺います。
I can't attend the funeral, so I will call to offer my condolences later.
弔問客が次々と訪れ、線香の煙が立ち上った。
Mourners came one after another to pay their respects, and the smoke from the incense rose.