See major-league for more major leagueBrE /ˈmeɪdʒə liːɡ/ 🔊NAmE /ˈmeɪdʒər liːɡ/ 🔊 (also ˈMajor league) noun (NAmE) a league of professional sports teams, especially in baseball, that play at the highest level （尤指棒球）第一流的职业队伍联盟；大联盟