Cassone is an Italian word that refers to a type of ornate chest or trunk. While there may not be many commonly used synonyms for the word cassone, there are several related terms that can be used to describe similar pieces of furniture. For example, another Italian word, baule, can be used to describe a similar type of chest. Additionally, terms like chest or trunk could be used to describe a piece of furniture that fits the general description of a cassone. For more specific terminology, words like hope chest, dowry chest, or cedar chest could be used to describe a chest meant for storage purposes.