Noun deactivation has 2 senses
  1. deactivation, inactivation - breaking up a military unit (by transfers or discharges)
    --1 is a kind of dismissal, dismission, discharge, firing, liberation, release, sack, sacking
    Derived form: verb deactivate1
  2. deactivation, defusing - the act of deactivating or making ineffective (as a bomb)
    --2 is a kind of termination, ending, conclusion
    Antonyms: activation
    Derived form: verb deactivate2
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