Final answer:
Major Occupancy refers to the primary use of a building, Subsidiary Occupancy denotes secondary uses within the primary occupancy, and Multiple Major Occupancies occur when a building hosts two or more dominant uses.
Step-by-step explanation:
The terms Major Occupancy, Subsidiary Occupancy, and Multiple Major Occupancies pertain to how space is utilized within buildings and the classifications that dictate such use, commonly regulated through zoning laws and building codes. Major Occupancy refers to the primary use of a building or space. For instance, if a building is primarily used for manufacturing, the Major Occupancy classification would reflect that. Subsidiary Occupancy refers to secondary uses that exist within the main building. For example, an office within a factory would represent a Subsidiary Occupancy. Lastly, Multiple Major Occupancies exist when a building hosts two or more uses that are equally dominant, such as a mixed-use development that houses residential, commercial, and office spaces without a single use being predominant.