What is it called when you speak a language but can understand it?

There isn't a specific term for someone who can understand a language but can't speak it. However, there are a few ways to describe this situation:

* Passive bilingualism: This refers to someone who understands a language but can't speak it fluently.

* Receptive language skills: This is a broader term that refers to the ability to understand language, whether spoken, written, or signed.

* "Understander": This is a more informal term that can be used to describe someone who understands a language but can't speak it.

* "Listener": This term can be used to describe someone who can understand a language but may not be able to speak it.

Ultimately, the best way to describe someone who can understand a language but can't speak it will depend on the context.