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

First Known Use of DEFCON

1959, in the meaning defined above

History and Etymology for DEFCON

defense condition

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Dictionary Entries near DEFCON

defat

default

defaunate

DEFCON

defeasance

defeasible

defeat

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The first known use of DEFCON was in 1959

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