What does the term fly refer to regarding a flag?

The term "fly" in relation to a flag specifically refers to the edge of the flag that is farthest from the staff or the pole from which it is displayed. This is an important concept in flag protocol and etiquette, as the fly end is where the flag typically billows out and is most visible when displayed. Understanding this term helps cadets recognize how flags are constructed and the importance of the orientation of a flag when it is flown.

In contrast, the other options describe different aspects of flags but do not accurately represent the definition of "fly." The height at which a flag is flown pertains to its position, while the center section of the flag refers to a part rather than its positioning. The type of flagpole used relates to the equipment for displaying the flag, but again does not define the term "fly."