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WordReference Random House Learner's Dictionary of American English © 2024rul•er /ˈrulɚ/USA pronunciation n. [countable]- one who rules or governs, as a king, queen, president, etc.
- Weights and MeasuresAlso, rule. a strip of wood or other material that has a straight edge and is marked off in inches or centimeters, used for drawing lines and measuring.
WordReference Random House Unabridged Dictionary of American English © 2024rul•er (ro̅o̅′lər),USA pronunciation n. - a person who rules or governs;
sovereign. - Weights and MeasuresAlso, rule. a strip of wood, metal, or other material having a straight edge and usually marked off in inches or centimeters, used for drawing lines, measuring, etc.
- a person or thing that rules paper, wood, etc.
- Astrologythe planet primarily associated with any sign of the zodiac or any house of the horoscope:The ruler of Aries is Mars. The ruler of Taurus is Venus.
- 1325–75; Middle English; see rule, -er1
Collins Concise English Dictionary © HarperCollins Publishers:: ruler /ˈruːlə/ n - a person who rules or commands
- Also called: rule a strip of wood, metal, or other material, having straight edges graduated usually in millimetres or inches, used for measuring and drawing straight lines
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