league
n
1 alliance, association, band, coalition, combination, combine, compact, confederacy, confederation, consortium, federation, fellowship, fraternity, group, guild, order, partnership, union
2 ability group, category, class, level
3 in league (with) allied, collaborating, hand in glove, in cahoots (informal) leagued
vb
4 ally, amalgamate, associate, band, collaborate, combine, confederate, join forces, unite