What is the term for the presidential power to reject a bill?

The term for the presidential power to reject a bill is "veto." When a president vetoes a bill, they are exercising their constitutional authority to refuse to sign legislation passed by Congress. The Constitution grants the president this power as a system of checks and balances, ensuring that not all legislative proposals automatically become law without the president's approval.

A veto can be overridden by Congress if both the House of Representatives and the Senate pass the bill again with a two-thirds majority vote in each chamber. This arrangement underscores the balance of power among the branches of government, allowing the president to have a significant role in the legislative process while still holding Congress accountable.

Other terms such as filibuster, suspension, or ratification do not accurately define the presidential power to reject a bill. Filibuster pertains to a tactic used in the Senate to delay a vote on legislation, suspension refers to temporarily halting a legislative process or rule, and ratification is the formal approval of an agreement or treaty, typically involving Congress.