1. to remove the classification or secrecy designation from (a document or information), making it available to the public
Usage: government/military context

Examples

• The government decided to declassify the Cold War documents after fifty years.
• Intelligence agencies often declassify materials once they no longer pose security risks.
• The president ordered officials to declassify the investigation files.
• It took decades for historians to access the declassified military records.
• The agency will declassify portions of the report while keeping sensitive details secret.
• Congress pressured the administration to declassify information about the incident.