I recently came across some code a developer had done where they had named 2 public procedures 'Setup' and 'Teardown', when I fist saw these I instinctively thought of unit tests and thought that class might relate to unit testing. After looking into the code it was apparent that these procedures where meant to be called after an object of the class was created and before the object was freed, but had nothing to do with unit testing.
Even though there are no restrictions on using these words for procedures I do think it is best practice not to use them in production code and name them something different like 'InitializeResources' and 'CleanupResources'. I think keeping procedures 'Setup' and 'Teardown' specifically for testing maintains a clear distinction between testing and application logic, which can be beneficial for maintainability.
