What is another word for echolocation?

There isn't really a true synonym for "echolocation" because it describes a very specific process. However, depending on the context, you might use words like:

* Biosonar: This term emphasizes the biological aspect of echolocation, especially in animals.

* Sound navigation and ranging (SONAR): This term is more technical and refers to the artificial technology used for underwater navigation and detection.

* Acoustic orientation: This term focuses on the process of using sound to navigate and orient oneself.

* Sound perception: This term is broader and could encompass other uses of sound beyond echolocation.

Ultimately, the best alternative word depends on the specific situation and what you want to emphasize.