1
: a person who reigns over a kingdom or empire: such as
a
: a sovereign ruler
b
: a constitutional (see constitutional entry 1 sense 1) king or queen
2
: one that holds preeminent position or power
Cotton, monarch of the textile world …—
Wall Street Journal
Wall Street JournalSynonyms of monarch
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 monarch reduced his royal duties for three months and returned to work in April 2024 with a visit to a major cancer hospital in London, where he was announced as Patron of Cancer Research UK.
—Kelsie Gibson, PEOPLE, 12 Dec. 2025
As the ailing monarch prepares to be surrounded by family at Sandringham during Christmas, royal experts told Fox News Digital that his youngest son has been on his mind.
—Stephanie Nolasco , Ashley Papa, FOXNews.com, 12 Dec. 2025
This year, the butterflies’ annual migration will carry a new kind of buzz as smartphones sync with the motions of the monarchs.
—Olivia Maule, Mercury News, 6 Dec. 2025
Tagawa was given his real breakthrough by Italian director Bernardo Bertolucci, who chose him for his Oscar-winning 1987 film , a dramatization of the life of China’s final monarch of the Qing dynasty, Emperor Puyi.
—Giulia Carbonaro, MSNBC Newsweek, 5 Dec. 2025
See All Example Sentences for monarch
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Kelsie Gibson, PEOPLE, 12 Dec. 2025
As the ailing monarch prepares to be surrounded by family at Sandringham during Christmas, royal experts told Fox News Digital that his youngest son has been on his mind.
—Stephanie Nolasco , Ashley Papa, FOXNews.com, 12 Dec. 2025
This year, the butterflies’ annual migration will carry a new kind of buzz as smartphones sync with the motions of the monarchs.
—Olivia Maule, Mercury News, 6 Dec. 2025
Tagawa was given his real breakthrough by Italian director Bernardo Bertolucci, who chose him for his Oscar-winning 1987 film , a dramatization of the life of China’s final monarch of the Qing dynasty, Emperor Puyi.
—Giulia Carbonaro, MSNBC Newsweek, 5 Dec. 2025
See All Example Sentences for monarch
Cite this Entry
“Monarch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monarch. Accessed 15 Dec. 2025.
Copy CitationKids 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
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