Twelve mile limits refer to the exclusive economic zone (EEZ) surrounding a country's coastline, extending 12 nautical miles from its territorial sea baseline. Synonyms for this term include territorial waters, coastal zone, and contiguous zone.
The territorial waters are the sovereign waters extending up to 12 nautical miles from a country's baseline. The coastal zone refers to an area extending up to 200 nautical miles from a nation's coastline, which includes its seabed, subsoil, and resources. The contiguous zone consists of an area extending up to 24 nautical miles from a country's baseline, where it may enforce customs, immigration, and sanitary regulations.
In summary, there are several synonyms for the term "twelve mile limits," including territorial waters, coastal zone, and contiguous zone, each with their unique definition and boundaries.