The Liao Dynasty, also known as the Khitan Empire, was a powerful dynasty that ruled over large parts of Mongolia and Northern China from 907 to 1125 CE. The word Liao is often used to describe this period in Chinese history, but there are several synonyms that can also be used to refer to this dynasty. Some of these synonyms include the Khitan Dynasty, the Great Liao, the Bukhara Liao, and the Kara-Khitan Khanate. Each of these terms highlights different aspects of the Liao Dynasty, such as its founders, its territorial scope, or its relationship with neighboring regions.