But essentially, it depends upon what your account’s default language is. If the main language is Dutch, then you would need to just find the appropriate form or sublist and rename it. If Dutch is not the primary language, then you would need to edit it via the translations tab or popup for the form, search, or sublist. NetSuite lets user specify their own translation for most UI visible elements, so someone likely entered that. Whether it was intentional or not is hard to say.