The term 'joins forces' can be defined by the following crossword solutions: teams (5 letters), allies (6 letters), enlists (7 letters), unites (6 letters), gangsup (7 letters), and teamsup (7 letters). Teams are groups of people who come together to work towards a common goal. Allies are two or more parties that have formed a mutual agreement to support each other. Enlists is the act of joining the military or a similar organization. Unites is the act of bringing people or things together. Gangsup is the act of forming a gang or group of people for a common purpose. Teamsup is the act of forming a team or group of people for a common purpose. All of these terms refer to the idea of joining forces, which is the act of combining resources and efforts in order to achieve a common goal.