An automobile engine can be referred to by several other names or synonyms. One of the most common synonyms for the term "automobile engine" is "motor." Other synonyms for an automobile engine include "power plant," "drive unit," and "motor block." The engine in a vehicle is also sometimes referred to as an "internal combustion engine" or simply as "the motor." Furthermore, the engine can also be referred to in terms of the type of fuel it uses, such as a "diesel engine" or "gasoline engine." In everyday conversation, automobile engine synonyms are frequently used interchangeably to refer to the core element of a vehicle that gives it power and movement.