1. the rank, office, or position of an emperor
2. the period during which an emperor rules

Examples

• He aspired to the emperorship from an early age.
• The emperorship of Augustus lasted over 40 years.
• She inherited the emperorship after her father's death.
• The emperorship carried immense power and responsibility.
• During his emperorship, the empire expanded significantly.
• The transition to emperorship marked a turning point in the nation's history.