2. (noun)veto the power or right to prohibit or reject a proposed or intended act (especially the power of a chiefexecutive to reject a bill passed by the legislature)
3. (verb)veto, blackball, negative vote against; refuse to endorse; refuse to assent "The President vetoed the bill"
4. (verb)forbid, prohibit, interdict, proscribe, veto, disallow, nix command against "I forbid you to call me late at night"; "Mother vetoed the trip to the chocolate store"; "Dad nixed our plans"