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A wallet is a small, flat case used to carry personal items such as cash, credit cards, and identification documents. Typically made of leather or fabric, wallets have a folding design that allows them to easily fit in a pocket or purse. They may feature multiple compartments for organization and security features like zippers, buttons, or snaps. Some wallets also include RFID-blocking technology to protect against electronic identity theft. Wallets are commonly used by individuals to keep their personal items organized and secure while on the go.

A train is a type of vehicle that runs on tracks, used for transporting people or goods over long distances. It consists of a series of connected carriages or wagons, which are pulled or pushed by a locomotive, a powerful engine designed to move the train. Trains are powered by various energy sources, including electricity or diesel engines. They are an efficient way to travel, especially for long distances, and are commonly used in many countries for both local and international travel. Trains offer a smooth ride, and their fixed tracks help avoid traffic, making them a reliable form of transportation.

Traffic refers to the movement of vehicles and people along roads or streets. It involves cars, buses, bicycles, and pedestrians moving from one place to another. The flow of traffic can vary depending on the time of day, road conditions, and the number of vehicles or people. In busy areas, traffic can become slow, causing delays. Proper management of traffic helps ensure safety and smooth movement on roads.