WordWeb Online

1. (baseball) the most important league in any sport (especially baseball)
   - major league, big league

1. (military) a commissioned military officer in the United States Army or Air Force or Marines; below lieutenant colonel and above captain
    
2. [N. Amer, Austral, NZ] A university student who is studying a particular field as the principal subject
   "she is a linguistics major"
    
3. [N. Amer, Austral, NZ] The principal field of study of a student at a university
   "her major is linguistics"

1. Have as one's principal field of study
   "She is majoring in linguistics"

Type of: bailiwick, commissioned military officer, conference, discipline, educatee, field, field of study, league, pupil, student, study, subject, subject area, subject field

Encyclopedia: Majors, Jonathan