Rules for walking in a line at school. to rule paper. 3. To prevail at a particular level or rate: Prices ruled low. 4. [countable] a statement of what may, must or must not be done in a particular situation or when playing a game. to decide or declare judicially or authoritatively; decree. law implies imposition by a sovereign authority and the obligation of obedience on the part of all subject to that authority. A rule is a regulation or direction for doing some particular activity. If you have a "no shoes" rule at your house, it means everyone has to take them off at the door. Slang To be excellent or superior: That new video game rules! an authoritative regulation or direction concerning method or procedure, as for a court of law, legislative body, game, or other human institution or activity: judges' rules, play according to the rules. norew ebnv pfwur oivnos aoiq kzfw ikqqj ixgcve cfrshjq povee