English to English

noun (n)

• the act of releasing from an attachment or connection(noun.act)

  Synonym:
  detachment
  

  source: wordnet30
• to break off a military action with an enemy(noun.act)

  Synonym:
  fallback, pullout
  

  source: wordnet30
• The act of disengaging or setting free, or the state of being disengaged.(noun)

  source: webster1913