top secret

adjective

1
: protected by a high degree of secrecy
a top secret weapon
a top secret meeting
2
a
: containing or being information whose unauthorized disclosure could result in exceptionally grave danger to the nation
top secret messages
compare confidential, secret
b
: of or relating to top secret documents
a top secret clearance

Examples of top secret in a Sentence

The mission is top secret.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The name’s Bezos… Jeff Bezos: Much like a Bond mission, the 007 news was kept top secret. Max Goldbart, Deadline, 21 Feb. 2025 Guantanamo's sordid past includes top secret torture facilities, the inhumane treatment of Haitian asylum seekers fleeing political violence, a concentration camp for people with HIV, and ongoing brutalization of Muslim detainees after 9/11 who were famously waterboarded and otherwise tortured. Dan Perry, Newsweek, 19 Feb. 2025 Birmingham, meanwhile, have special plans of their own, including a live performance — the details remain top secret — and a mind-boggling array of pre-match pyrotechnics. Gregg Evans, The Athletic, 6 Feb. 2025 Veltri was leading the South Florida office when Trump was indicted in June 2023 on charges of withholding top secret documents from the U.S. government and conspiring with two of his Mar-a-Lago employees to obstruct efforts to retrieve them. Jay Weaver, Miami Herald, 4 Feb. 2025 See All Example Sentences for top secret

Word History

First Known Use

1942, in the meaning defined at sense 1

Time Traveler
The first known use of top secret was in 1942

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Cite this Entry

“Top secret.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/top%20secret. Accessed 3 Mar. 2025.

Kids Definition

top secret

adjective
1
: protected by a high degree of secrecy
a top secret meeting
2
: containing information that is very important to the safety and defense of a nation
top secret messages

More from Merriam-Webster on top secret

Last Updated: - Updated example sentences
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