/ˈmeɪdʒə(r) ||; ˈmedʒɚ/noun1 (abbr Maj.) [C] an officer of a middle level in the army or the US air force 陆军少校;美国空军少校
2 [C] (US 美) the main subject or course of a student at college or university; the student who studies it (学生在学院或大学的)主修科目或课程;主修某课程的学生: Her major is French. 她主修法语。
3 [U] (used in music) a type of key¹(4) or scale (音乐)大调,大音阶: a change from major to minor 从大调变成小调