What does it mean to veto a measure?

To veto a measure means to formally reject or prohibit a proposal, typically legislation, from becoming law. This authority is often granted to a head of state or government, such as a president or governor, who can refuse to sign a bill passed by the legislative body. A veto can be overridden by a supermajority vote in the legislature, depending on the governing rules. This process serves as a check on legislative power, ensuring that not all proposed measures are enacted without executive approval.