Definition of DEFCON in English:

DEFCON

Syllabification: DEF·CON
Pronunciation: /ˈdefˌkän
 
/
(also defcon)

noun

Each of a series of five progressive levels of alert used by the US armed forces: conventional and nuclear forces were moved to DEFCON 2 figurative my stress levels have finally reached defcon 1
More example sentences
  • Tolerance level for people in general is at DEFCON 1.
  • I'm at DEFCON - 3 with the washing machine actually.
  • The Defense Department has these procedures - the "Defense Condition," or DEFCON, system.

Origin

1950s: acronym from defense readiness condition.

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