Do you capitalize sign language in a sentence?

You generally don't capitalize "sign language" in a sentence. It's treated like any other language name, such as English, Spanish, or Japanese.

Here are some examples:

* She learned to communicate in sign language.

* The sign language interpreter made the presentation accessible to everyone.

* Sign language is a beautiful and expressive form of communication.

However, there are some exceptions:

* When referring to a specific type of sign language: For example, you might capitalize "American Sign Language" (ASL) or "British Sign Language" (BSL). This is similar to capitalizing specific languages like "English" or "French."

* When used in a title: For example, "The History of Sign Language" would capitalize "Sign Language" because it's part of the title.

In general, treat "sign language" like any other language name and lowercase it unless it's a specific type or part of a title.