The word "unites with" means to come together and join forces or efforts towards a common goal. Synonyms for this phrase include allies with, teams up with, collaborates with, works in tandem with, cooperates with, joins forces with, and stands alongside. These words all convey a sense of partnership and mutual support. Whether it's in a personal or professional setting, the act of uniting with others often leads to increased success and progress. By utilizing these synonyms, you can add variety to your writing or conversation while conveying the same message of solidarity and unity.