This is the 16220th most frequent Russian word.
рассекретили
Declassified.
Here, "рассекретили" is used in the context of declassifying sensitive information.
Они рассекретили архивные данные.
They declassified the archival data.
In this example, "рассекретили" refers to discovering and exposing information during reconnaissance.
Разведчики рассекретили планы противника.
The scouts unveiled the enemy's plans.
"Рассекретили" denotes revealing confidential information during a public event.