A sink is a plumbing fixture used for washing hands, dishes, and other items. It typically consists of a basin that holds water and a drain that allows wastewater to flow away. Sinks are commonly found in kitchens and bathrooms, and they can be made from various materials, including stainless steel, porcelain, and composite materials. Sinks are equipped with faucets that provide a controlled flow of water. They may also have additional features, such as garbage disposals in kitchen sinks, which help to grind food waste. Proper installation and maintenance of sinks are essential for preventing leaks and ensuring efficient drainage.