Black Maria is a term used to describe a police van or wagon that is used to transport prisoners. However, there are other words that can be used to refer to this vehicle. Some common synonyms include "paddy wagon", "meat wagon", "police van", "prisoner transport", "jail bus", "cell bus", and "warden wagon". These terms are often used interchangeably and depend on the location or region. Additionally, some cities or police departments may have their own unique slang or terminology for these vehicles. Regardless of the term used, the main purpose of these vehicles remains the same - to safely transport individuals who have been detained by law enforcement officers.