The term 'Hub of a Wheel' can be summarized as the central part of a wheel, which is also known as the NAVE (4 letters). The hub is the part of the wheel that connects the spokes to the rim and provides support for the entire wheel. It is typically made of metal or plastic and is the point of contact between the wheel and the axle. The hub is an essential component of any wheeled vehicle, as it is responsible for transferring the force from the axle to the wheel.