Cavo-rilievo is an Italian term that is used to describe a type of sculpture which is deeply carved, with parts of the design in high relief and others in lower relief. This style of sculpting is commonly used in art and architectural pieces. Synonyms for cavo-rilievo include sunken relief, intaglio, engraving, or incised work. These terms describe techniques that involve cutting or carving a design into a surface, rather than building it up in relief. Each synonym adds a unique nuance to the description of the artwork it describes, but all are used to describe the complex and detailed sculptures found in cavo-rilievo.