The rearview mirror is an important driving tool that allows drivers to see what is happening behind and around their vehicles. However, there are several synonyms that can be used to describe this object. The most common synonym for a rearview mirror is a "rear mirror". Other popular synonyms include "back mirror", "rear view reflector", "rear observation mirror", and "rear vision mirror". Additionally, some newer vehicles are equipped with cameras that display a live feed of what is behind the car on a screen in the center console. These devices are often referred to as "rearview cameras", "backup cameras", or "reverse cameras". Regardless of the term used, these tools are critical for safe and confident driving.