The Euphrates River is a vital waterway that has been known by numerous names throughout history. Some of the most commonly used synonyms for the Euphrates River include the Great River, the River of Babylon, the Mesopotamian River, and the River of Peace. Other lesser-known synonyms for this river include Nahar Malka, which means "King's River," and Amaru, which means "fat-tailed sheep." The Euphrates River has played a crucial role in the history of many cultures, including the Sumerians, Babylonians, and Assyrians. This river is still a significant source of irrigation water for modern-day countries like Turkey, Syria, and Iraq.