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

Synonyms & Similar Words
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 Vulnerabilities in software can result in attacks that compromise its entire ability to drive safely, meaning security is no longer just a matter of keeping your car safe. — Mike McRae 20, New Atlas, 21 Oct. 2026 In a turnabout from Orbán's hostile approach to Kyiv, Magyar's government has expressed solidarity with Ukraine and designated Russia a national security threat. — ABC News, 21 Oct. 2026 In addition to the mayor, the village’s public information officer previously handled publicity for the track and the mayor of Ruidoso Downs previously oversaw its security. — Abe Streep, ProPublica, 21 Oct. 2026 Members of parliament received in-depth security briefings in Canberra on Wednesday as the Australian Federal Police (AFP) commissioner pointed to rising reports of harassment and threats against federal parliamentarians. — Hilary Whiteman, CNN Money, 21 Oct. 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
  • Stokes finished with a personal 2026 postseason-best 13 points to go with eight rebounds, three blocks and suffocating defense on Dream star Angel Reese, who was held to seven points on 2-for-8 shooting.
    — Reuters, NBC news, 27 Oct. 2026
  • Portis rushed to his teammates’ defense, getting into Gafford’s face before the two teams separated them.
    — Anthony Chiang, Miami Herald, 27 Oct. 2026
Definition of defense
Noun
  • Obviously, there’s no guarantee a healthy Hurts would win those awards.
    — Michael McCann, Sportico.com, 26 Oct. 2026
  • Past performance definitely is no guarantee of future results, of course.
    — Kansas City Star, Kansas City Star, 26 Oct. 2026
Definition of guarantee
Noun
  • However, the historical cases suggest that if accountability for cumulative harm arrives, product-level safety features deployed in isolation can be repurposed as part of a defense to such claims.
    — Ned Cooper, STAT, 26 Oct. 2026
  • Anthropic highlighted a number of political challenges, data center moratoriums and the company's effort to balance safety and commercial objectives as potential risks.
    — Ashley Capoot, CNBC, 26 Oct. 2026
Definition of safety
Noun
  • Meta has long been criticized for its data privacy practices, and on Wednesday, a New Mexico judge ordered the company to pay $25 billion for violating the state’s consumer protection laws.
    — Andrew R. Chow, Time, 22 Oct. 2026
  • And Paulino’s research into plantas de poder (plants of power), used for spiritual protection in Afro-Brazilian religious traditions, has only deepened, the relationship between her plants and the cycles of day and night becoming more expansive.
    — Tatiane de Assis, ARTnews.com, 21 Oct. 2026
Definition of protection
Noun
  • New York — Brett Smiley was elected mayor of Providence in 2022 on a pledge to build more housing and get things done in Rhode Island’s capital city.
    — Nathaniel Meyersohn, CNN Money, 25 Oct. 2026
  • And while tax law partially achieves his pledge to eliminate taxes on tips and overtime, the reality is a little more complicated.
    — Josephine Murphy, NBC news, 23 Oct. 2026
Definition of pledge
Noun
  • Carrying several rockets lets the aircraft conduct multiple engagements in one sortie, though the number of successful interceptions will depend on the targets, engagement conditions, and available ammunition.
    — Kaif Shaikh, Interesting Engineering, 25 Oct. 2026
  • The Ukrainian leader has pleaded with Washington to supply more Patriot air-defense ammunition to stop the missiles, and to heap more sanctions on Russia to pressure Moscow to pursue peace.
    — Arkansas Online, Arkansas Online, 23 Oct. 2026
Definition of ammunition
Noun
  • The latest incidents, which follow a slew of reports of agents unexpectedly breaking out of sandboxes, showcased how even the safeguards built to corral AI systems are vulnerable to the technology.
    — Prashant Rao, semafor.com, 21 Oct. 2026
  • In both cases, the AI agents considered whether monitoring safeguards should be preserved but interpreted routine coding instructions as permission to weaken them.
    — ABC News, ABC News, 21 Oct. 2026
Definition of safeguard
Noun
  • Dozens of armored cops were still standing guard, shields raised, after a night when 500 people were taken into custody in the French capital alone.
    — Arkansas Online, Arkansas Online, 20 Oct. 2026
  • Tortoiseshell shield sunglasses and a timeless black tote complete the casual-meets-cool outfit.
    — Laura Jackson, Vogue, 16 Oct. 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 27 Oct. 2026.

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