verb (v)

• get rid of (someone who may be a threat) by killing(verb.contact)

  Synonym:
  do in, knock off, liquidate, neutralize, waste
  

  source: wordnet30
• make incapable of military action(verb.competition)

  Synonym:
  neutralize
  

  source: wordnet30
• make ineffective by counterbalancing the effect of(verb.change)

  Synonym:
  negate, neutralize, nullify
  

  source: wordnet30
• make chemically neutral(verb.change)

  source: wordnet30