How to Use DEFCON in a Sentence
DEFCON
noun-
Margo’s identity reveal triggers a DEFCON 5 situation for Mark’s mother.
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Erin Qualey,
Vulture,
6 May 2026
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Everybody’s favourite Premier League companion game evolves year on year, with the introduction of defensive contribution (DEFCON) this season as well as two sets of super-powered chips.
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Holly Shand,
New York Times,
26 May 2026
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According to Politico, White House officials met with organizers of the hacker conference DEFCON in March and agreed at that time to support a public red-teaming exercise.
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IEEE Spectrum,
15 Mar. 2024
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By May, administration officials announced their support to attempt an AI red teaming exercise at the upcoming DEFCON 31 conference in Las Vegas.
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IEEE Spectrum,
15 Mar. 2024
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Anthropic, OpenAI, and DeepMind have all outlined escalating levels of safety precautions—akin to the military’s DEFCON system—corresponding to more powerful AI models.
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Matteo Wong,
The Atlantic,
21 Aug. 2025
Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'DEFCON.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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