In the context of BTS, "ARMY" stands for "Adorable Representative M.C. for Youth." It is the official fandom name for fans of the group. The name was chosen by BTS themselves, symbolizing the strong connection and mutual support between the group and their fans. Over time, "ARMY" has come to represent "A.R.M.Y." as an acronym for "Adorable Representative M.C. for Youth."