VETO

[noun] [plural] vetoes - (a) refusal to allow something to be doneThe proposal was removed by Congress under threat of presidential veto. [U]The Ministry of Defence has the power of veto over all British arms exports. [U]In theory the British government could use its veto to block this proposal. [C]The Senate voted to override the President's veto of the proposed measures. [C](esp. UK) Mum has put a veto on our watching television for more than two hours an evening. [C](esp. UK) The author has insisted on having a veto over the film version of her book. [C]