1. a person who rules jointly with another; a joint ruler or co-monarch
Usage: often used in historical or political contexts

Examples

• The two brothers served as corulers of the kingdom after their father's death.
• In ancient Rome, corulers sometimes shared power to maintain stability.
• The corulers agreed to divide administrative duties between them.
• Historical records show that corulers often faced conflicts over authority.
• She became coruler alongside her husband, sharing equal power and responsibility.