When we think of the word "hippodromes", the first thing that comes to mind is horse racing. However, there are several other words that can be used as synonyms for this term. Some of these include racetracks, courses, circuits, and arenas. The word "racetracks" is probably the most commonly used synonym, as it refers to the actual track on which the horses run. "Courses" is also a popular synonym, as it implies a specific route that the horses must follow. "Circuits" refers to a series of races that take place over a long period of time, while an "arena" can refer to any large, enclosed space where equestrian events are held.