party
1 at-home, bash (informal) beano (Brit. slang) celebration, do (informal) festivity, function, gathering, get-together (informal) hooley or hoolie (chiefly Irish & N.Z.) knees-up (Brit. informal) rave (Brit. slang) rave-up (Brit. slang) reception, shindig (informal) social, social gathering, soirée
2 band, body, bunch (informal) company, crew, detachment (Military) gang, gathering, group, squad, team, unit
3 alliance, association, cabal, camp, clique, coalition, combination, confederacy, coterie, faction, grouping, league, schism, set, side
4 individual, person, somebody, someone
5 (Law) contractor (Law) defendant, litigant, participant, plaintiff