disappearance
//ˌdɪs.əˈpɪə.rəns//
Noun
disappearanceSingular
disappearancesPlural
1
The act or process of someone or something ceasing to be visible or to exist.
The disappearance of the sun behind the clouds made the room dark.
2
The fact of someone going missing or being lost, especially in unexplained circumstances.
The police are investigating the mysterious disappearance of the young woman.