1. the rank, position, or office of a lieutenant
Usage: military; formal
2. the period of time during which someone serves as a lieutenant
Usage: formal

Examples

• He was promoted to lieutenancy after two years of service.
• Her lieutenancy in the navy lasted three years.
• The young officer aspired to achieve lieutenancy by age twenty-five.
• During his lieutenancy, he led several successful missions.
• The lieutenancy required extensive training and dedication.
• She earned her lieutenancy through exceptional performance.