| 单词 | defcon |
| 释义 | DEFCON in British English (ˈdɛfˌkɒn) noun each of a series of five progressive levels of alert used by the US military security levels have reportedly been raised to DEFCON 3 Word origin C20: acronym from defense readiness conditionDEFCON in American English (ˈdefkɑn) noun any of several alert statuses for U.S. military forces, ranked numerically from normal, 5, to maximum readiness, 1 Word origin [def(ense readiness) con(dition)] |
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