Meaning : Command against.
I forbid you to call me late at night.
Mother vetoed the trip to the chocolate store.
Dad nixed our plans.
Meaning : A vote that blocks a decision.
Meaning : 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).
Veto ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Veto ka matlab kya hota hai?