The term JOINS FORCES (WITH) can be summarized by two crossword solutions: UNITES (6 letters) and TEAMSUP (7 letters). UNITES is a verb meaning to bring together or combine into one, while TEAMSUP is an informal term for the act of joining forces with someone or something. Both terms refer to the idea of working together in order to achieve a common goal. Joining forces with someone or something can be beneficial in many ways, such as increasing efficiency, pooling resources, and creating a sense of unity.