Dictionary.com
Thesaurus.com

duumvirate

American  
[doo-uhm-ver-it, dyoo-] / duˈʌm vər ɪt, dyu- /

noun

  1. a coalition of two persons holding the same office, as in ancient Rome.

  2. the office or government of two such persons.


duumvirate British  
/ djuːˈʌmvɪrɪt /

noun

  1. the office of or government by duumvirs

"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

Etymology

Origin of duumvirate

From the Latin word duumvirātus, dating back to 1650–60. See duumvir, -ate 3

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.

When the All Blacks’ coaching triumvirate of Graham Henry, Steve Hansen and Wayne Smith replaced the Mitchell-Deans duumvirate in 2004 they worked on improving the team’s set-pieces, but they retained counter-attack.

From The Guardian

Of what did the duumvirate of digital videos discuss?

From Slate

The only authority figure above them in the film is Snoke, who’s present only as a hologram; for the bulk of the film Hux and Kylo Ren are the duumvirate directing the First Order’s activities, and they do so with relish.

From Salon

That's why I still think the coalition will stagger on to the designated election day , 7 May 2015, under its present Cameron/Clegg duumvirate.

From The Guardian

It was coined at the height of the euro crisis last year to mock a duumvirate that had become exclusive, dictatorial and sometimes comical in the way a weakened Mr Sarkozy pretended to be the equal of the powerful German chancellor.

From Economist