monarch

noun

mon·​arch ˈmä-nərk 

-ˌnärk

1

: a person who reigns over a kingdom or empire: such as

a

: a sovereign ruler

b

: a constitutional (see constitutional entry 1 sense 3) king or queen

2

: one that holds preeminent position or power

cotton, monarch of the textile world

—Wall Street Journal

3

: monarch butterfly

monarchal

mə-ˈnär-kəl 

mä-

adjective

or monarchial

mə-ˈnär-kē-əl 

mä-

Synonyms

• autocrat
• potentate
• ruler
• sovereign
• sovran

Examples of monarch in a Sentence

a new history of French monarchs

the ruling monarch of Britain at that time was Queen Elizabeth I

Recent Examples on the Web

The British monarch is expected to skip the late pontiff's funeral service at St Peter's Basilica church in the Vatican on April 26, keeping in line with royal traditions, Kensington Palace confirmed to Vanity Fair and Us Weekly. —Jay Stahl, USA Today, 25 Apr. 2025

Yet, in truth, Pope Francis simply did what every other pope (or monarch, world leader, or even CEO) would do: surrounded himself with like-minded people. — Made By History, Time, 22 Apr. 2025

All three of the monarch's siblings attended: Princess Anne with her husband Sir Timothy Laurence, Prince Andrew with his ex-wife Sarah Ferguson and Prince Edward with his wife Sophie, the Duchess of Edinburgh. —Stephanie Petit, People.com, 21 Apr. 2025

Now, without its monarch, the Western world’s most powerful religious institution is sailing into unknown waters. —Timothy Nerozzi, The Washington Examiner, 21 Apr. 2025

Word History

Etymology

Late Latin monarcha, from Greek monarchos, from mon- + -archos -arch

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing monarch

• monarch butterfly

Rhymes for monarch

• ballpark
• benchmark
• birthmark
• daymark
• earmark
• embark
• hallmark
• landmark
• postmark
• remark
• skylark
• tetrarch

Kids Definition

monarch

noun

mon·​arch ˈmän-ərk 

-ˌärk

1

: a person who reigns over a kingdom or empire: as

a

: a ruler who has total power

absolute monarch

b

: someone who acts primarily as chief of state and who has only limited powers

constitutional monarch

2

: someone or something like a monarch

the oak is the monarch of the forest

3

: monarch butterfly

monarchal

mə-ˈnär-kəl 

mä-

adjective

or monarchial

-kē-əl