bōryokudan; gangster organization (organisation); crime syndicate; yakuza
violence by weight of numbers; tyranny of the majority
act of violence; violent behavior
household violence (esp. adolescent children towards parents); domestic violence
nonviolence; non-violence
member of an organized crime group; gangster; mobster; yakuza
sexual violence; gender-related violence
violent scene (in a movie, etc.)
racketeering by interceding in civil disputes and threatening the use of violence
police violence; police brutality
violence behind closed doors; domestic violence