The main point of the keyword phrase "september 11 patriot day usa" is the term "Patriot Day," which functions as a proper noun. The entire phrase operates as a single, multi-word proper noun that names a specific day of national observance.
In a grammatical analysis, "Patriot Day" is the core component. It is a compound noun where "Patriot" acts as an attributive noun (a noun functioning as an adjective) to modify "Day." The other elements, "September 11" and "USA," serve as adjectival modifiers. "September 11" specifies the date, and "USA" specifies the geographical context. While composed of multiple words, the phrase functions as a singular noun phrase, with "Day" (as part of "Patriot Day") being the grammatical head or main subject.
Understanding this keyword as a proper noun is crucial because it establishes the subject of the article as a specific, named entity. This classification dictates that the article's focus should be on defining, describing, and providing context for this particular observance, rather than on the individual concepts of "patriotism" or the date in isolation. The main point is the name of the event, which is grammatically a noun.
