There isn't one single, universally accepted "other name" for a rift valley. However, depending on the specific context, you could use terms like:

* Graben: This is a more technical term that describes a block of land that has dropped down between two faults. Rift valleys are often formed by multiple grabens.

* Fault trough: This emphasizes the role of faulting in creating the valley.

* Tectonic depression: This highlights the role of tectonic forces in creating the valley.

* Continental rift: This term emphasizes the process of the continent splitting apart, which often creates rift valleys.

It's important to choose the term that best fits the specific context and level of detail you need.