A taxi is a type of vehicle that provides transportation services to passengers for a fee. Taxis are typically equipped with a meter that calculates the fare based on distance traveled and time taken. They can be hailed on the street, booked via phone, or requested through mobile apps. Taxis come in various forms, including traditional yellow cabs and rideshare vehicles. They are an essential part of urban transportation systems, offering convenience for those who do not own a car or prefer not to drive. Taxis are often regulated by local governments to ensure safety and fair pricing.