군대에서 위관급 이상의 장교가 아닌, 하사, 중사, 상사 등의 계급을 가진 간부.
A military officer who has not been given a commission, typically a sergeant or corporal.
예문:
"The NCO led the squad through the dense forest during the night exercise."
"NCOs are often described as the backbone of the army due to their technical expertise."