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NSA

American  
Or N.S.A.

abbreviation

  1. National Security Agency.

  2. National Shipping Authority.

  3. National Standards Association.

  4. National Student Association.

  5. negative security assurance.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

By 26, he was breaking Russian codes for the NSA during the Cold War.

From MarketWatch • Nov. 15, 2025

The ministry accused the NSA of exploiting weaknesses in the messaging service of an unspecified foreign mobile phone brand in order to steal login credentials from employees at the time centre.

From Barron's • Oct. 19, 2025

And it's the reason why we have any oversight over these intelligence operations, the CIA, the FBI, the NSA, all of them.

From Salon • Aug. 21, 2024

Five years later, whistleblower Edward Snowden leaked documents revealing that the NSA monitored Americans’ private conversations.

From Los Angeles Times • Jul. 24, 2024

The NSA worried about William in part because few people knew as many of their secrets as he did.

From "The Woman All Spies Fear" by Amy Butler Greenfield

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.