disappear + -ance

source: Steam コミュニティ :: :: Saber

noun usually in singular

an instance or fact of someone or something ceasing to be visible.

〖通例単数形で〗 «…からの» (物の)紛失, 盗難 «from»

an instance or fact of someone going missing or (in coded political language) being killed:

(人の)失踪, 見えなくなること

e.g. the police were investigating her disappearance.

the process or fact of something ceasing to exist or be in use:

(物･動物などの)消滅, 使われなくなること

e.g. the disappearance of grammar schools.