A vacuum truck is a vehicle equipped with a powerful vacuum system designed to clean up liquid and solid waste. There are various synonyms for the term "vacuum truck" that are used in different parts of the world. In the United Kingdom, it is commonly known as a "gully cleaner" as it is used to clean out gullies and drains. In Australia, people refer to it as a "sucker truck" or "suction truck" while in Canada, it is known as a "sewage truck" or "septic truck". In the United States, it is commonly called a "vac truck" or "pumper truck" as it is used to pump out septic tanks. Regardless of the term used, the purpose of the vehicle remains the same - to collect and remove waste efficiently.