"Featured soup" is a term often used in restaurant menus and food blogs to highlight a particular soup dish. However, there are several synonyms that can be used to convey the same message. For instance, "signature soup" or "soup of the day" can be used to emphasize a special soup dish that the restaurant is known for or one that changes daily. "Soup du jour" is another French term that can replace "featured soup" and add an elegant touch to the menu. Additionally, using adjectives like "special" or "chef's choice" before the word "soup" can also indicate a highlighted dish on the menu.