Twin-prop, also known as twin-propeller, is a term used to describe a type of aircraft that is powered by two propellers. However, there are several synonyms that can be used to replace the term twin-prop. These include: twin-engine propeller aircraft, dual-propeller plane, bi-prop, double-prop, and double-engine prop plane. These synonyms are useful when describing or searching for a specific type of aircraft, and can be used interchangeably with the term twin-prop. Regardless of the specific term used, it is important to know that twin-prop aircraft are highly reliable and efficient, making them a popular choice among pilots and airline companies alike.