A watchword; a word or phrase that serves as one's guide.
A word that is printed at the top or bottom of the page in a reference work, in order to help readers find a specific entry.
Any of the words in a memo or email that define metadata regarding the message, such as sender, recipient, and subject.
A ruler; device for measuring, a straightedge, a measure.
A determinate method prescribed for performing any operation and producing a certain result.
A regulating principle.
A normal condition or state of affairs.
A regulation, law, guideline.
An order regulating the practice of the courts, or an order made between parties to an action or a suit.
A straight line (continuous mark, as made by a pen or the like), especially one lying across a paper as a guide for writing.
The act of ruling; administration of law; government; empire; authority; control.
To establish or settle by, or as by, a rule; to fix by universal or general consent, or by common practice.
To regulate, be in charge of, make decisions for, reign over.
To decide judicially.
To mark (paper or the like) with rules (lines).
To excel.