ruler

play
noun rul·er \ˈrü-lər\

Definition of ruler

  1. 1 :  one that rules; specifically :  sovereign

  2. 2 :  a worker or a machine that rules paper

  3. 3 :  a smooth-edged strip (as of wood or metal) that is usually marked off in units (such as inches) and is used as a straightedge or for measuring

rulership

play \-ˌship\ noun

Examples of ruler in a Sentence

  1. a summit attended by a number of rulers from around the world

  2. This ruler shows inches and centimeters.

Recent Examples of ruler from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ruler.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ruler

14th century


RULER Defined for English Language Learners

ruler

play
noun

Definition of ruler for English Language Learners

  • : a person (such as a king or queen) who rules a country, area, group, etc.

  • : a straight piece of plastic, wood, or metal that has marks on it to show units of length and that is used to measure things


RULER Defined for Kids

ruler

play
noun rul·er \ˈrü-lər\

Definition of ruler for Students

  1. 1 :  a person (as a king or queen) having supreme power over a nation

  2. 2 :  a straight strip (as of plastic, wood, or metal) with a smooth edge that is marked off in units and used for measuring or as a guide in drawing straight lines



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