top-secret

[top-see-krit]

adjective

1. bearing the classification top-secret, the highest level of classified information.

2. limited to persons authorized to use anything so classified.

top-secret

adjective

1. containing information whose disclosure would cause exceedingly grave damage to the nation and therefore classified as needing the highest level of secrecy and security

Word History and Origins

Origin of top-secret¹

First recorded in 1940–45; top ¹ + secret

Example Sentences

By then I was already working on top-secret projects.

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It was there that Ms Ponting became one of thousands of people experimented on as part of the CIA's top-secret research into mind control.

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Paramilitary bodyguards place a hood over Gabriel’s head and drive him to a top-secret location for an interview with this charismatic figure.

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He told the men: You’ve been selected for your outstanding pilot ratings, your experience in single-pilot jets, and your top-secret clearances.

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Now, heading into their fourth winter of war, the country’s energy suppliers are banking on a network of massive, U.S.-designed batteries held at top-secret locations to help keep the lights on.

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