Definitions
1.verbTo regulate, be in charge of, make decisions for, reign over.
2.verbTo excel."This game rules!"
3.verbTo mark (paper or the like) with rules (lines).
4.verbTo decide judicially.
5.verbTo establish or settle by, or as by, a rule; to fix by universal or general consent, or by common practice.
6.verbTo revel.
7.adjectiveHaving printed lines."a letter on ruled paper"
8.adjective(of a surface) Being a scroll; being such that through every point of S there is a straight line that lies on S.