1. the position or authority of being a ruler; the act or process of ruling
2. the period during which someone rules

Examples

• The king’s rulership lasted for thirty years.
• She questioned the legitimacy of his rulership over the territory.
• The transition to democratic rulership was gradual but successful.
• Under her wise rulership, the kingdom prospered.
• The people grew tired of authoritarian rulership.
• His rulership began when he was only sixteen years old.
• The council challenged the prince’s claim to rulership.