The crossword solution for the term 'LITERALLY, 'I forbid'' is VETO, which is a four-letter word. VETO is a Latin word meaning 'I forbid' and is used to describe the power of a person or group to reject or prohibit a decision or proposal made by another. It is most commonly used in politics, where it is the power of a head of state to reject a bill passed by a legislature. In other contexts, VETO can also refer to the power of an individual or group to prevent an action from taking place.