veto - definition and synonyms

 
noun [countable] 

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/ˈviːtəʊ/
singularveto
pluralvetoes
  1. an official refusal to approve or allow something

    The government has threatened a veto of any tax reform proposals.

    1. a.
      [uncountable] the right to refuse to approve or allow something, especially the right given by a constitution to prevent a law from being passed