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veto against, veto on, veto over

A legal or official body with the authority to reject a plan or prohibit an action has a power of veto. The plural is vetoes.

The noun veto is followed by against, on or over, or no preposition.

  • Some Security Council members will cast a veto against a UN resolution sanctioning military intervention.
  • The federal government has a right of veto on all aspects of constitutional amendments.
  • Without a quorum, the members were unable to override the veto.

The verb veto does not require a preposition.

  • The board of directors vetoed the plan to buy out the competition.

Informally, veto is used as a synonym for reject or forbid.

  • Every time Simon makes a proposal, Danielle vetoes (or rejects) it.