There are a number of synonyms that can be used to describe a diesel motor, the commonest of which is simply "diesel engine". Other terms that may be used include "diesel powerplant" or "oil engine". In certain contexts, a diesel motor may be referred to as a "compression-ignition engine" or simply a "CI engine". "Oil burner" is also a common colloquial term for a diesel motor, used particularly in the United States. Overall, there are many different words and phrases that can be used to describe this common type of internal combustion engine, reflecting the importance of diesel motors in modern transportation and industry.