league1 / lēg/ • n. 1. a collection of people, countries, or groups that combine for a particular purpose, typically mutual protection or cooperation: the League of Nations. ∎ an agreement to combine in this way.2. a group of sports clubs that play each other over a period for a championship. ∎ the contest for the championship of such a league: the year we won the league.3. a class or category of quality or excellence: the two men were not in the same league Jack’s in a league of his own.• v. (leagues, leagued, lea·guing) [intr.] join in a league or alliance: Oscar had leagued with other construction firms.PHRASES: in league conspiring with another or others: he is in league with the devil. league2 • n. a former measure of distance by land, usually about three miles.
Hence vb. XVII. leaguer1 member of a league, XVI; see -ER1.