Definitions of Catherine:

• noun:   Empress of Russia who greatly increased the territory of the empire (1729-1796)
• noun:   first wife of Henry VIII; Henry's divorce from her was the initial step of the Reformation in England (1485-1536)
• name:  A female given name (very common: 1 in 268 females; popularity rank in the U.S.: #46)
• name:  A surname (very rare: popularity rank in the U.S.: #74288)