ruler

noun

rul·​er ˈrü-lər How to pronounce ruler (audio)
Synonyms of rulernext
1
: one that rules
specifically : sovereign
2
: a worker or a machine that rules paper
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
ˈrü-lər-ˌship How to pronounce ruler (audio)
noun

Synonyms of ruler

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Examples of ruler in a Sentence

a summit attended by a number of rulers from around the world This ruler shows inches and centimeters.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But the new ruler of the Iron Throne has to make a power statement. — Bryan Alexander, USA Today, 29 June 2026 For 28 years and counting, Venezuela’s rulers have stolen or squandered much of the oil revenue of the most oil-rich country in the world. — Gisela Salim-Peyer, The Atlantic, 1 July 2026 And for Rhaenyra, there are different visions of her premiership, one being something that looks a little like her father’s, that of the sort of moderate, kind of peaceful ruler. — Jennifer Maas, Variety, 6 July 2026 Since overthrowing the Assad dynasty, Syria’s new rulers have struggled to exert control across the country and to check extremist groups. — ABC News, 3 July 2026 See All Example Sentences for ruler

Word History

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of ruler was in the 14th century

Phrases Containing ruler

Rhymes for ruler

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Browse Nearby Words

rule out of
ruler
rulership
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Cite this Entry

“Ruler.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ruler. Accessed 10 Jul. 2026.

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Kids Definition

ruler

noun
rul·​er ˈrü-lər How to pronounce ruler (audio)
1
: sovereign entry 1 sense 1
2
: a straight strip of material (as wood or metal) marked off in units and used as a guide in drawing lines or for measuring

More from Merriam-Webster on ruler

Nglish: Translation of ruler for Spanish Speakers

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