A "Hub World" is a term used in video games, particularly in platformers and adventure games. It refers to an area or level that serves as a central location where players can access other levels, areas, or stages from different parts of the game. These hubs usually contain various items, characters, or challenges that help progress through the storyline or unlock new paths for exploration. The term "hub world" comes from the idea that these central locations are like a wheel's hub, with spokes leading to other areas and levels.