noun Date: 1920 a noncommissioned officer ranking in the army above a sergeant first class and below a staff sergeant major, in the air force above a technical sergeant and below a senior ~, and in the marine corps above a gunnery sergeant and below a master gunnery sergeant
MASTER SERGEANT
Meaning of MASTER SERGEANT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012