The term "neck of land" is commonly used to describe a narrow strip of land connecting two larger bodies of land. However, there are many other synonyms for this term, including "isthmus", "land bridge", "spit", "tombolo", and "causeway". Each of these words describes a slightly different type of land formation, but all refer to a narrow strip of land that connects two larger areas. Isthmuses and land bridges typically connect two larger landmasses, while spits and tombolos are narrow strips of land that extend outward from a larger body of land. Causeways are man-made structures that are built to connect two areas of land, often over a body of water.