Motorbicycle, also known as a motorcycle, is a two-wheeled vehicle that is powered by an engine. There are different synonyms for the word motorbicycle that can be used interchangeably. One such word is motorbike or bike, which is a shorter version of the word motorcycle. Another synonym for motorbicycle is a two-wheeler, which includes any vehicle with two wheels. A scooter is also considered a type of motorbicycle, as it has a small engine and relies on balance and self-propulsion. Other words that can be used as synonyms for motorbicycle include moped, motorized bicycle, and dirt bike, which are usually designed for specific purposes and terrain.