Twin-engines are a type of aircraft that are powered by two engines. If you are looking for synonyms for this term, you can use "dual engines," "double engines," "paired engines," or "twin motors." These terms are often used interchangeably and can be used to describe the same concept. Twin-engine aircraft are very popular in the aviation industry due to their reliability and safety. They are particularly useful for long-distance flights and for carrying heavy cargo. If you are interested in learning more about twin-engine aircraft, you can do some research online or speak to an aviation expert.