Definitions

1. noun

a non-commissioned officer in a military unit, ranking above a corporal and below a lieutenant.

“The sergeant gave instructions to the new recruits during the training session.”

2. noun

a high-ranking police officer, ranking above a constable and below an inspector.

“The sergeant at the police station helped the officer solve the mystery.”

3. verb

to serve in the capacity of a sergeant, especially in a military or police context.

“He will sergeant in the army for the next few years.”