1
- a collection of people, countries, or groups that combine for a particular purpose, typically mutual protection or cooperation联盟：
the League of Nations.
国际联盟。
1.1
- an agreement to combine in this way盟约, 联盟条约。
2
- a group of sports clubs which play each other over a period for a championship体育俱乐部联合会。
2.1
- the contest for the championship of such a league（体育）联赛联盟冠军赛, 联合会冠军赛, 联盟杯赛：
the year we won the league.
我们赢得联赛冠军的那一年。
2.2
- mass noun short for RUGBY LEAGUE.RUGBY LEAGUE的简称。
3
- a class or category of quality or excellence品级; 优秀品质的等次; 能力（或才学等的）水平; 档次：
the two men were not in the same league
他们俩不是同一档次的人
Austin's in a league of his own.
奥斯汀卓而不群, 无人能及。
(leagues, leagued, leaguing)no obj.
- join in a league or alliance参加联盟, 加入联盟：
Oscar had leagued with other construction firms.
奥斯卡已经和其他建筑公司结盟。
短语
in league
- conspiring with another or others与…勾结, 与…同谋：
he is in league with the devil.
他与魔鬼勾结。
词源
late Middle English (denoting a compact for mutual protection or advantage)： via French from Italian lega, from legare 'to bind'， from Latin ligare.