The Sword of Damocles is a powerful symbol that represents impending danger and a looming threat. This phrase is derived from the Greek legend of Damocles, who was a courtier of King Dionysus II. According to the legend, Damocles was granted his wish to be king for a day, but he soon realized the precariousness of his newfound power when he saw a sword hanging above his throne held by only a single hair. If the hair were to break, the sword would fall and kill him. Other synonyms for the Sword of Damocles include threat, danger, menace, peril, impending doom, ticking time bomb, and hanging over one's head.