Similar word to tiein:
alliance, amalgamation, banding together, bunch, cahoots, clan, coalition, combination, confederation, conjunction, connection, crew, crowd, gang, hookup, incorporation, joining, league, merging, mob, outfit, partnership, relationship, ring, syndicate, tie-in, union
alliance, amalgamation, banding together, bunch, cahoots, clan, coalition, combination, confederation, conjunction, connection, crew, crowd, gang, hookup, incorporation, joining, league, merging, mob, outfit, partnership, relationship, ring, syndicate, tie-in, union