Pronunciation: [blˈak tˈaksi] (IPA) 
The spelling of "black taxi" seems straightforward, but there are a couple of tricky points. First, the word "black" has a silent "k" at the end, which is indicated in IPA transcription with the symbol /k/. Second, the word "taxi" has a stressed first syllable that is pronounced like "tack" (/tæks/) rather than "tax" (/tæks/). So the full pronunciation would be something like "BLAK /tek-see/."
A black taxi refers to a type of vehicle, typically a traditional London taxi, that is predominantly black in color and used for transporting passengers for hire. Black taxis are commonly associated with the United Kingdom, particularly the city of London, where they have become iconic symbols of the urban landscape.
The term "black taxi" is often used to distinguish these licensed taxis from private hire vehicles or minicabs, which usually operate using different regulations and licensing procedures. Black taxis are hailed in the street or hired from designated taxi ranks, and are easily recognizable by their distinct appearance, featuring a boxy shape and a spacious interior capable of accommodating multiple passengers. They are renowned for their high level of accessibility, including wheelchair access, making them suitable for people with disabilities or limited mobility.
Black taxis are known for their professional and knowledgeable drivers who possess an intimate understanding of London's streets and landmarks, as they are required to pass rigorous examinations known as "The Knowledge." This extensive training ensures that black taxi drivers are experienced and able to navigate the city efficiently.
The term "black taxi" may also be used in a broader sense to describe similar metered taxis found in other cities around the world that share similar characteristics, such as their black color and purpose of transporting passengers for a fare.
The word "black taxi" originates from the appearance and history of the traditional London taxi cabs. In the early 1900s, the Public Carriage Office in London introduced regulations specifying that all licensed taxicabs must be black in color. This move was meant to create a standardized and recognizable appearance for licensed London taxis. Over time, these distinctive black cabs came to be known as "black taxis" or "black cabs", referring to both their color and their status as licensed taxis. The term has since become synonymous with the iconic black vehicles commonly seen on the streets of London.
