security

noun

si-ˈkyu̇r-ə-tē How to pronounce security (audio)
Definition of securitynext
1
as in defense
means or method of defending measures taken to beef up our national security

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Antonyms & Near Antonyms
2
as in guarantee
something given or held to assure that the giver will keep a promise their house will serve as security for the loan

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3
as in safety
the state of not being exposed to danger after the burglaries, police presence in the neighborhood was enhanced to give residents a stronger sense of security

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Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of security Several troubling new details are included in the articles, including an accusation that ADA leadership knew in advance that members would be handing out copies of the editorial and deliberately set up an ambush by venue security and local police. — Jennifer Ouellette, ArsTechnica, 17 July 2026 Marinella said candidates are still keeping the issue of border security top of mind for their voters. — Ximena Bustillo, NPR, 17 July 2026 Republicans and administration officials, like DHS head Markwayne Mullin, supported the president's call for stronger election security measures. — Terry Collins, USA Today, 17 July 2026 Ahead of the speech, elections and democracy experts had cautioned that the president may attempt to sow doubt about the security of the nation’s election system or bolster debunked fraud claims. — Justine McDaniel, Los Angeles Times, 17 July 2026 See All Example Sentences for security
Recent Examples of Synonyms for security
  1. defense
  2. guarantee
  3. safety
  4. protection
  5. pledge
  6. ammunition
  7. safeguard
  8. shield
Noun
  • Its modular design also enables production to scale as defense programs transition from development into higher-rate manufacturing.
    — Aamir Khollam, Interesting Engineering, 21 July 2026
  • Trump didn’t specify what upgrades are needed but the $400 million jet reportedly lacks the anti-missile defense capabilities that the older presidential jets are equipped with.
    — Dave Goldiner, New York Daily News, 20 July 2026
Definition of defense
Noun
  • Distance from the front lines is no longer a guarantee of safety.
    — Nimi Princewill, CNN Money, 20 July 2026
  • Many of the housing units that have been built in Manchester’s city center, sometimes with support from public loans or loan guarantees, are expensive market-rate apartments; more affordable units are still hard to find.
    — John Cassidy, New Yorker, 20 July 2026
Definition of guarantee
Noun
  • Launch safety, orbital debris, broadband access, AI model conduct, content moderation, data use and energy consumption belong to different industry materiality maps.
    — Shivaram Rajgopal, Forbes.com, 23 July 2026
  • On Wednesday, University of Miami researchers decided to move some of their most important old-stock Elkhorn corals from their three nurseries offshore of Virginia Key and bring them to the safety of their onshore aquariums.
    — Alex Harris July 23, Miami Herald, 23 July 2026
Definition of safety
Noun
  • Asking the people with the least protection to spend the most courage is the most respectable alibi available to anyone with a title.
    — Sachin H. Jain, Forbes.com, 18 July 2026
  • Still, locals hope the mountain’s cultural and natural wonders will secure it a place and will play a role in securing more protection for the mountain.
    — ABC News, ABC News, 18 July 2026
Definition of protection
Noun
  • Burnham made a small down payment on that pledge by announcing a tax cut on energy bills that will save the average household about 45 pounds ($60) a year.
    — ABC News, ABC News, 21 July 2026
  • As of this writing, only eight other members of Congress have signed the pledge.
    — James Kirchick, The Atlantic, 21 July 2026
Definition of pledge
Noun
  • Most defense investors are currently pricing deterrence, ammunition, drones and military readiness.
    — Güney Yıldız, Forbes.com, 20 July 2026
  • Ukraine is also running out of ammunition in the midst of a declining global supply.
    — Ihor N. Stelmach, Hartford Courant, 19 July 2026
Definition of ammunition
Noun
  • The company has repeatedly denied manipulating election results and says its technology contains safeguards designed to detect irregularities.
    — Antonio María Delgado, Miami Herald, 17 July 2026
  • As organizations continue to integrate AI into information workflows, maintaining independent human judgment may become one of their most important safeguards.
    — Beth Worthy, Forbes.com, 17 July 2026
Definition of safeguard
Noun
  • The particles pose one of the more severe threats for human activities in space, Brandt said, but the boundary of the heliosphere acts as a shield to protect our solar system from 70% of them.
    — Ashley Strickland, CNN Money, 16 July 2026
  • That’s why researchers are engineering the cancer-fighting cells to be smarter, and stronger, with a better sugar shield.
    — Michelle Marchante, Miami Herald, 16 July 2026
Definition of shield

Browse Nearby Words

securities
security
security blanket
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Cite this Entry

“Security.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/security. Accessed 23 Jul. 2026.

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More from Merriam-Webster on security

Nglish: Translation of security for Spanish Speakers

Britannica.com: Encyclopedia article about security

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