Hypophrygian mode is a term used in music theory to describe a particular type of musical scale. This scale is typically found in ancient Greek music and is characterized by its distinctive pattern of notes. The mode is often used to create a sense of tension and melancholy in music. There are several synonyms for the term "hypophrygian mode," including Phrygian hypodorian, Phrygian major, and Phrygian dominant. Each of these terms describes a similar musical scale and can be used interchangeably with hypophrygian mode. Ultimately, the choice of which term to use will depend on the context and the preferences of the musician or music theorist.