Plovdiv is a beautiful city in Bulgaria that boasts a rich history and culture. When referring to Plovdiv, there are several synonyms that can be used, either in conversation or in writing. For instance, Plovdiv is sometimes referred to as the "oldest city in Europe" due to its ancient roots, but it is also commonly known as the "city of the seven hills" due to its location on seven hills overlooking the Thracian Plain. Another synonym for Plovdiv is the "city of artists" due to its thriving arts scene and the presence of several museums and galleries. Other terms that can be used to describe Plovdiv include the "ancient city," the "cultural capital," and the "city of festivals." No matter what you call it, Plovdiv is a unique and fascinating city that is definitely worth a visit.