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
In addition to claiming the second-most No. 1s of all time, Linkin Park has also scored multiple long-running rulers.
—
Hugh McIntyre, Forbes.com, 28 May 2025
The death in 2022 of a young Iranian Kurdish woman in the custody of the morality police for allegedly violating hijab rules sparked Iran's biggest domestic unrest since the 1979 revolution that brought its clerical rulers to power.
—Miranda Murray, USA Today, 26 May 2025
With your planetary ruler, Saturn, entering Aries and your fourth house of home and family, you’re being called to tend to your personal life.
—Valerie Mesa, People.com, 26 May 2025
The congressional sanctions, known as the Caesar Syria Civilian Protection Act, had aimed to isolate Syria's previous rulers by effectively expelling those doing business with them from the global financial system.
—Arkansas Online, 25 May 2025
See All Example Sentences for ruler
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Hugh McIntyre, Forbes.com, 28 May 2025
The death in 2022 of a young Iranian Kurdish woman in the custody of the morality police for allegedly violating hijab rules sparked Iran's biggest domestic unrest since the 1979 revolution that brought its clerical rulers to power.
—Miranda Murray, USA Today, 26 May 2025
With your planetary ruler, Saturn, entering Aries and your fourth house of home and family, you’re being called to tend to your personal life.
—Valerie Mesa, People.com, 26 May 2025
The congressional sanctions, known as the Caesar Syria Civilian Protection Act, had aimed to isolate Syria's previous rulers by effectively expelling those doing business with them from the global financial system.
—Arkansas Online, 25 May 2025
See All Example Sentences for ruler
Cite this Entry
“Ruler.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ruler. Accessed 2 Jun. 2025.
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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