| cahoots(association, compound, alliance, merger) |
| cartel(association, compound, alliance, merger) |
| club(group, class, crowd, circle) |
| coadunation(association, compound, alliance, partnership) |
| coalition(association, party, compound, alliance) |
| consortium(association, compound, alliance, partnership) |
| crush(group, class, crowd, circle) |
| fraternity(group, class, crowd, circle) |
| hookup(association, compound, alliance, merger) |
| in-group(noun, group, class, crowd) |
| insiders(noun, class, crowd, party) |
| lobby(noun, group, circle) |
| mergence(association, compound, alliance, partnership) |
| pack(noun, group, circle) |
| party(class, crowd, association, ring) |
| posse(group, class, crowd, circle) |
| society(group, class, crowd, party) |
| tie-up(association, compound, alliance, merger) |
| affiliation(association, alliance, merger, partnership) |
| compound(merger, partnership, consolidation) |