gangEnglishOxford American Thesaurusgang noun 1 a gang of teenagers: band, group, crowd, pack, horde, throng, mob, herd, swarm, multitude, mass, body, troop, drove, cluster; company, gathering, assemblage, assembly; informal posse, bunch, gaggle, load. 2 informal John was one of our gang: circle, social circle, social set, group of friends, clique, in-crowd, coterie, lot, ring, clan, club, league, faction, cabal; fraternity, sorority, brotherhood, sisterhood; informal crew, posse, squad; rare sodality, confraternity. 3 a work gang hammering cobbles into the highway: squad, team, troop, shift, detachment, posse, troupe; working party.verb □ gang upthey all ganged up to put me down: conspire, cooperate, work together, act together, combine, join up, join forces, team up, club together, get together, unite, ally; rare coact.