What is the 23 foot post that holds the net called?

The 23-foot post that holds the net is referred to as a mast assembly. In the context of certain sporting and recreational activities, particularly those involving nets such as volleyball or badminton, the mast assembly serves a crucial structural function. It provides the necessary height and stability to ensure that the net is positioned correctly above the playing area.

The term "mast assembly" specifically denotes a vertical structure designed to support a net, distinguishing it from other components that may also play roles in a system or structure. A support tower, for instance, typically refers to a larger or more robust structure used in various applications, including electrical or radio towers, and does not apply to the context of net holding. Reinforcement beams are generally horizontal supports that add stability to buildings or similar structures, while vertical struts are used in a different engineering context, often as part of frameworks.

In this scenario, the mast assembly is uniquely suited for the task of net support, making it the correct terminology.