Definition of coruler
plural corulers
or co-rulers
:someone who rules with another
- … they deposed him and put in his place his son, Stephen Dushan, who had until then served as coruler.
- —Cyril E. Black
- Such was the royal ardor that it took guilt over the death of his wife and co-ruler Queen Mary to end the affair.
- —Martin Rubin
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