DEFCON

noun DEF·CON \ ˈdef-ˌkän \

Definition of DEFCON

:any one of five levels of U.S. military defense readiness that are ranked from 5 to 1 according to the perceived threat to national security, with 1 indicating the highest level of perceived threat
  • It was determined that the secretary of Defense had the authority to declare DEFCON 3 on his authority.
  • —Stephen A. Cambone
sometimes used figuratively
  • Don't even mention the privatization of Social Security that will take Congress to DEFCON 1.
  • —Sam Allis

Origin and Etymology of defcon

defense condition


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