The term "Transcontinental Canal" generally refers to a proposed waterway that would connect two oceans across a continent, facilitating maritime trade. One of the most notable examples is the Panama Canal, which connects the Atlantic Ocean to the Pacific Ocean and significantly reduces travel time for ships. Another example is the historical concept of a canal across North America, which was never completed. Such projects aim to enhance global trade routes and improve shipping efficiency, but they often face engineering, financial, and environmental challenges.