* Isthmus: This is the most common term for a narrow strip of land connecting two larger landmasses, typically with water on both sides.
* Straits: This term is used for a narrow waterway that connects two larger bodies of water. While it's not directly "through" land, it's a passage between landmasses.
* Passage: This is a general term that can be used for any narrow path or route, including those through land.
* Gap: This is a more general term, but can be used to describe a narrow passage or opening in a mountain range or other landform.
* Cove: A small, sheltered inlet or recess in a coastline can sometimes be considered a narrow passage, particularly if it allows access to a larger body of water.
The specific term used will depend on the specific characteristics of the passage and the context in which it is being described.
