Declassify is a term used when documents previously marked as classified or confidential are made available to the public. Some synonyms for declassify include unclassified, open, uncovered, unveiled, unrestricted, free, public, revealed, and disclosed. When a document is declassified, it allows individuals to access information that was previously kept secret. Governments and organizations may choose to declassify documents for various reasons, such as to promote transparency or to aid in historical research. Declassification can also be used to correct past mistakes, expose wrongdoings, or simply to make information available to the public for educational purposes.