Freedom of navigation is a concept that has been used extensively in international law to describe the right of ships to move freely in international waters. However, there are several synonyms for this term that are frequently used by scholars and policymakers alike. These include freedom of the high seas, unimpeded maritime navigation, freedom of the seas, and unrestricted navigation. Each synonym emphasizes the importance of unencumbered movement through international waters, as well as the need for states to respect the rights of other nations to navigate these waters without interference. In essence, freedom of navigation is a cornerstone of modern international law that helps to promote peace, security, and prosperity across the globe.