その筋 (translations)→ authorities authority
マフィア (translations)→ gang gangbanger maffia Mafia mafia mobster
一味 (translations)→ accomplice band companion ring
群 (translations)→ cohort crowd gaggle group
群衆 (translations)→ blowout drove neighborhood people throng
手下 (translations)→ kid retainer
集団 (translations)→ aggregation assemblage bunch class legion lot platoon syndicate
組織 (translations)→ agency conformation department framework institution office operation org organ organization organized outfit splice unit