A power inverter is a device that is designed to convert DC power to AC power. This device is typically used to power electrical appliances and equipment that require AC power when there is no mains supply. However, there are several other synonyms for the term "power inverter". One of the most common synonyms is voltage inverter or DC-AC converter. Other synonyms include power converter, DC to AC inverter, inverter charger, and sine wave inverter. These terms are often used interchangeably to describe a device that is used to convert DC power to AC power, but they may also refer to different types or models of power inverters based on their operating characteristics or their intended use.