The term "Home Base" can have multiple meanings depending on the context in which it is used.
In general, home base refers to a place or location that serves as a central point or origin for something. For example, when talking about military operations, Home Base could refer to the main camp or headquarters from where missions are planned and carried out. In sports such as baseball, home base can be one of the four bases that form a diamond shape on a ball field; it is the starting point for runners and the place they return to when hitting a ball.
In other contexts, Home Base could also refer to a person's regular or primary location, such as their house or apartment where they live. It can also be used metaphorically to describe someone who has returned to a familiar environment after being away for some time.