master sergeant

== English == === Noun === master sergeant (plural master sergeants) (military, US) A non-commissioned officer in the United States Army, ranking above sergeant first class and below sergeant major; equal in grade and pay to a first sergeant. (military, US) A non-commissioned officer in the United States Marine Corps, ranking above gunnery sergeant and below master gunnery sergeant or sergeant major. (military, US) A non-commissioned officer in the United States Air Force, ranking above technical sergeant and below senior master sergeant. === References === US Army Ranks and Insignia Enlisted Rank Insignia, US Department of Defense