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
Synonyms of ruler
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
Lorne, then, is an observant and patient tale of the rise of a ruler who adapts and also thrives on chaos, Richard III meets The Ballad of Songbirds and Snakes meets Animal House.
—
Brian Boone, Vulture, 12 Dec. 2025
Previously the residence of the ruler of Venice, the residence and the Venetian governmental and judicial center, the palace is now a museum and a masterpiece of Gothic architecture.
—Fairchild Studio, Footwear News, 10 Dec. 2025
The Hasmonean wall foundation, whose excavation was finished last week in Jerusalem, was likely built a few decades after the story of Hanukkah by the same rulers.
—CBS News, 10 Dec. 2025
Cambodia's longtime ruler—now Senate president Hun Sen-accused Thailand of trying to provoke a reaction and urged Cambodian forces to exercise patience.
—Michael Sullivan, NPR, 8 Dec. 2025
See All Example Sentences for ruler
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Brian Boone, Vulture, 12 Dec. 2025
Previously the residence of the ruler of Venice, the residence and the Venetian governmental and judicial center, the palace is now a museum and a masterpiece of Gothic architecture.
—Fairchild Studio, Footwear News, 10 Dec. 2025
The Hasmonean wall foundation, whose excavation was finished last week in Jerusalem, was likely built a few decades after the story of Hanukkah by the same rulers.
—CBS News, 10 Dec. 2025
Cambodia's longtime ruler—now Senate president Hun Sen-accused Thailand of trying to provoke a reaction and urged Cambodian forces to exercise patience.
—Michael Sullivan, NPR, 8 Dec. 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 19 Dec. 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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