Wigwags are sometimes referred to as flashing lights that are used to communicate signals. There are several synonyms that can be used in place of the word "wigwags" depending on the context. Some of the common synonyms include blinkers, flashers, signals, beacons, and warning lights. These words can be used interchangeably to describe different types of signal lights, traffic lights, or warning systems. In some cases, the term "wigwags" may be specifically referring to railroad crossing lights, while other synonyms can be used more generally. Regardless of the synonym used, these types of lights serve an important function in communicating messages and warnings to people and drivers.