[ trahy-ahr-kee ]
/ ˈtraɪ ɑr ki /
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noun, plural tri·ar·chies.
government by three persons.
a set of three joint rulers; a triumvirate.
a country divided into three governments.
a group of three countries or districts, each under its own ruler.
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The rainy weather could not ________ my elated spirits on my graduation day.
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Origin of triarchy

First recorded in 1595–1605, triarchy is from the Greek word triarchía triumvirate. See tri-, -archy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use triarchy in a sentence

British Dictionary definitions for triarchy

/ (ˈtraɪɑːkɪ) /

noun plural -chies
government by three people; a triumvirate
a country ruled by three people
an association of three territories each governed by its own ruler
any of the three such territories
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