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
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
With pink representing Venus, the planetary ruler of Taurus, Lady Gaga‘s look resonates with the Earth sign, according to Stardust.
—
Kelsie Gibson, Peoplemag, 6 May 2024
Many lawmakers remain wary of Prince Mohammed, the kingdom’s 38-year-old de facto ruler, after the killing of Washington Post columnist Jamal Khashoggi by Saudi agents in 2018.
—Bloomberg News, Orange County Register, 2 May 2024
See all Example Sentences for ruler 
Kelsie Gibson, Peoplemag, 6 May 2024
Many lawmakers remain wary of Prince Mohammed, the kingdom’s 38-year-old de facto ruler, after the killing of Washington Post columnist Jamal Khashoggi by Saudi agents in 2018.
—Bloomberg News, Orange County Register, 2 May 2024
See all Example Sentences for ruler
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ruler.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near ruler
Cite this Entry
“Ruler.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ruler. Accessed 10 May. 2024.
Copy CitationKids Definition
ruler
noun
rul·er
ˈrü-lər 
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
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