Definition of DEFCON in English:


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


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.


1950s: acronym from defense readiness condition.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day bimble
Pronunciation: ˈbɪmb(ə)l
walk or travel at a leisurely pace