Oxford Dictionary English drum major nounnoun BrE BrE//ˈdrʌm meɪdʒə(r)// ; NAmE NAmE//ˈdrʌm meɪdʒər// Add to my wordlistjump to other resultsthe leader of a marching band of musicians, especially in the armySee drum major in the Oxford Advanced American DictionaryCheck pronunciation: drum major oxfordlearnersdictionaries.com