Littorals are the transitional zones between land and sea that encompass beaches, dunes, estuaries, and tidal marshes. These zones are crucial for the ecological balance of the planet and are essential habitats for various species of flora and fauna. Littorals are also important for human activities such as recreation, transportation, and commerce. Synonyms for littorals include coastlines, shorelines, seashores, beaches, and foreshores. Each of these synonyms highlights a different aspect of the littoral zone, but they all refer to the same important stretch of land where the land meets the sea. Understanding the importance of the littorals is crucial for the preservation of the world's biodiversity and for sustainable development.