A "Hub" is a central point or location where various activities, services, or connections converge. In technology, it often refers to a device that connects multiple computers or networks, allowing them to communicate with each other. This can enhance data sharing and improve efficiency in a network. In a broader context, a hub can also refer to a place where people gather for a specific purpose, such as a community center or a transportation hub like an airport. These hubs facilitate interaction and collaboration among individuals, making them essential for social and economic activities.