Definition: In English, `.env.testing` refers to a script that allows you to run tests in various environments (like development or production). This environment may be different from your local development environment based on the framework being used. The `.` at the end indicates that it's for testing purposes. It does not have any specific meaning unless there's an explicit requirement for such test cases in the codebase. For example: ```bash test_prod.sh: # This will run tests in production (development) bash test_prod.sh ``` In this example, `test_prod.sh` is a script that runs tests.