1. an official decision made by a judge, court, or other authority

1. having control or power over others; governing
2. most important or influential at a particular time

Examples

• The court’s ruling favored the plaintiff in the lawsuit.
• The judge issued a ruling on the motion to dismiss.
• The ruling party won the election by a large margin.
• She belongs to the ruling class of the country.
• The ruling principle in his life was honesty.
• The Supreme Court’s ruling set an important precedent.
• The ruling elite controlled most of the nation’s wealth.