noun
declassification
Refers to the act of removing classified status from documents or information, making them publicly accessible.
政府はその文書の機密解除を決定した。
The government decided to declassify the document.
機密解除された情報が公開された。
The declassified information was released.
Compound of 機密 (classified, secret) and 解除 (release, cancellation).