Veto definition

noun

(1) A vote that blocks a decision

(2) The power or right to prohibit or reject a proposed or intended act (especially the power of a chief executive to reject a bill passed by the legislature)

verb

(3) Command against

"I forbid you to call me late at night"

"Mother vetoed the trip to the chocolate store"

(4) Vote against; refuse to endorse; refuse to assent

"The President vetoed the bill"