The Collaborative International Dictionary
Duumvirate \Du*um"vi*rate\, n. [L. duumviratus, fr. duumvir.] The union of two men in the same office; or the office, dignity, or government of two men thus associated, as in ancient Rome. [1913 Webster] ||
Wiktionary
n. 1 Any of several branches of the executive in Republican Rome controlled by two people. 2 A group of two officials; a union or coalition of two people.
Wikipedia
A duumvirate is an alliance between two equally powerful political or military leaders. The term can also be used to describe a state with two different military leaders who both declare themselves to be the sole leader of the state.
Usage examples of "duumvirate".
Few favored an outright duumvirate of twins, but several groups called for joint rule by annual alternation, citing various actual and mythical precedents, as a peaceful resolution of the question.
Few favored an outright duumvirate of twins, but several groups called for joint rule by annual alternation, citing various actual and mythical precedents, as a peaceful resolution of the question.