Having a clear and consistent naming strategy for Entities and Attributes in both the programmer's language (English. What else?) and the customer's language (often Dutch) will reduce the number of misunderstandings drastically and will make it easier to write stories and communicate about them.
In many projects Entities and Attributes have names in a mixture of english and dutch. Sometimes even two languages in one name. See this example
Would be nice to always use english for the names and also have them translatable similar to other textelements on pages.