join in a league or alliance

Oscar had leagued with other construction firms

a collection of people, countries, or groups that combine for mutual protection or cooperation

the League of Nations

a group of sports clubs which play each other over a period for a championship

the leading goalscorer in the league

the league championship

a class or category of quality or excellence

the two men were not in the same league

Austin's in a league of his own

a former measure of distance by land, usually about three miles