The term "between nations" refers to the relationship or interactions that take place between different countries. Synonyms for this phrase include international, intergovernmental, cross-border, transnational, and diplomatic. These terms convey the idea of mutual communication and collaboration between nations, whether it be for the purposes of trade, defense, or cultural exchange. The concept of "between nations" is often associated with the wider global community and represents the need for countries to work together in order to achieve common goals and overcome challenges that affect us all. In essence, the synonyms for "between nations" highlight the importance of building bridges and fostering cooperation at the international level.