top secret

adjective

Definition of top secret

1 : protected by a high degree of secrecy a top secret weapon a top secret meeting
2a : 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

The new directives have curtailed access to top secret material and meetings for the more than 30 people affected, including Kushner. Justin Sink, Bloomberg.com, "Trump Loses Key Loyalist Hope Hicks as Russia Probe, Midterms Loom," 1 Mar. 2018 Proving their impressive undercover skills once again, the night out for the Duke and Duchess of Sussex somehow remained top secret for the duration of their time spent in London's West End. Lucy Wood, Marie Claire, "Meghan Markle and Prince Harry Took a Secret Date Night to the Theatre," 4 Mar. 2019 The guest list remains top secret, but members of Jonas' family, including his brothers Joe and Kevin and Joe's fiancée Sophie Turner, have already arrived or are currently en route to India. Erica Gonzales, Harper's BAZAAR, "Meghan Markle and Prince Harry Will Miss Priyanka Chopra and Nick Jonas' Wedding," 29 Nov. 2018 The July meeting of 30 Northern Virginia officials, Crystal City developers and Amazon’s team at the Stomping Ground was top secret. Shayndi Raice, WSJ, "How Amazon Picked HQ2 and Jilted 236 Cities," 14 Nov. 2018 For example, the Department of Defense says a Period Reinvestigation (PR) must occur every five years for a top secret clearance, 10 years for a secret clearance and 15 years for a confidential clearance. Kaitlyn Schallhorn, Fox News, "What are security clearances and why do some former officials still have them?," 21 Aug. 2018 During the late 1960s, a top secret Soviet program to sneak nuclear weapons around U.S. early warning radars was mistaken for a rash of UFO sightings by Moscow's citizens. Kyle Mizokami, Popular Mechanics, "The Secret Soviet Space Weapon Mistaken for a UFO," 23 Aug. 2017 Here's hoping the Palace releases details about whatever this top secret meeting was called to plan, STAT. Kayleigh Roberts, Marie Claire, "Kate Middleton and Prince William Had a Secret Meeting with the Royal Foundation," 13 Jan. 2019 News of Doria's stay in the United Kingdom comes courtesy of royal commentator Omid Scobie, who recently discussed Meghan's mom's top secret British vacation on Good Morning America. Kayleigh Roberts, Marie Claire, "Doria Ragland Visited Meghan Markle and Prince Harry This Summer," 9 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'top secret.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of top secret

1944, in the meaning defined at sense 1

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Statistics for top secret

Last Updated

20 Apr 2019

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Time Traveler for top secret

The first known use of top secret was in 1944

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More Definitions for top secret

top secret

adjective

English Language Learners Definition of top secret

: kept completely secret by high government officials

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Spanish Central: Translation of top secret

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