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Synonyms

ruler

American  
[roo-ler] / ˈru lər /

noun

  1. a person who rules or governs; sovereign.

  2. Also a strip of wood, metal, or other material having a straight edge and usually marked off in inches or centimeters, used for drawing lines, measuring, etc.

  3. a person or thing that rules paper, wood, etc.

  4. Astrology. the planet primarily associated with any sign of the zodiac or any house of the horoscope.

    The ruler of Aries is Mars. The ruler of Taurus is Venus.


ruler British  
/ ˈruːlə /

noun

  1. a person who rules or commands

  2. Also called: rule.  a strip of wood, metal, or other material, having straight edges graduated usually in millimetres or inches, used for measuring and drawing straight lines

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • subruler noun
  • underruler noun

Etymology

Origin of ruler

Middle English word dating back to 1325–75; rule, -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The de facto ruler of Saudi Arabia, Mohammed bin Salman - who became crown prince in 2017 - has changed the country profoundly over the past few years, loosening social restrictions while simultaneously silencing criticism.

From BBC

Previous military ruler Ne Win changed the rules of the road, requiring vehicles to swap driving lanes -- supposedly the result of misconstrued astrological advice to shift his left-wing regime to the political right.

From Barron's

Dressed in a red bow tie and holding a poster reading "I want to get married", Bazhanov caught the eye of the longtime ruler and got his chance.

From Barron's

Instead, Saul merely seeks musical healing, and the boy and the ruler become friendly despite the unspoken conflict between them.

From The Wall Street Journal

Frequency combs, which earned a Nobel Prize in 2005, can be imagined as an incredibly accurate ruler made not from a solid material, but from light or radio waves.

From Science Daily