The term territorial waters is sometimes used informally to refer to any area of water over which a sovereign state has jurisdiction, including internal waters, the territorial sea, the contiguous zone, the exclusive economic zone, and potentially the extended continental shelf.In a narrower sense, the term is used as a synonym for the territorial sea.

Internal improvements is the term used historically in the United States for public works from the end of the American Revolution through much of the 19th century, mainly for the creation of a transportation infrastructure: roads, turnpikes, canals, harbors and navigation improvements. This older term carries the connotation of a political movement that called for the exercise of public …