A taxi is a vehicle that transports passengers for a fare, typically using a meter to calculate the cost based on distance traveled. Taxis are commonly found in urban areas and can be hailed on the street or booked through a phone app. They provide a convenient way for people to travel without needing their own vehicle. Taxis come in various types, including traditional yellow cabs and rideshare services like Uber and Lyft. Drivers usually require a special license and must follow local regulations. Taxis play an essential role in public transportation, offering an alternative to buses and trains.