sergeant major
From Longman Dictionary of Contemporary EnglishRelated topics: Militarysergeant majorˌsergeant ˈmajor noun [countable] PMPOSITION/RANKa military rankExamples from the Corpussergeant major• Why would the command sergeant major want to talk to you?• Never mind that old sergeant major of yours won't lie down, you're not doin' any ironing.