1. the period during which someone holds an official position or office
2. the state of holding an official position or office

Examples

• During her incumbency as mayor, the city saw significant economic growth.
• The senator’s long incumbency gave him considerable influence in Congress.
• His incumbency lasted only two years before he resigned.
• The advantages of incumbency often help politicians win reelection.
• She announced her candidacy to challenge the current incumbency.
• The governor’s incumbency was marked by several major reforms.