declassification
🇺🇸
/diːˌklæsɪfɪˈkeɪʃn/
🇬🇧
/diːˌklæsɪfɪˈkeɪʃn/
The process of removing a document or information's confidential status, making it available to the public.
The documents were approved for declassification after 25 years.
这些文件在25年后被批准解密。