The keyword phrase "patriot day 9 11" functions as a proper noun. It is the specific and formal name for the annual day of observance in the United States that commemorates the individuals killed in the September 11, 2001, terrorist attacks. As a proper noun, it designates a unique entity, similar to other holidays or official observances like "Veterans Day" or "Thanksgiving Day."
A grammatical analysis of the phrase shows its composite structure. "Patriot Day" is a compound noun, where "Patriot" serves as an attributive noun (or adjective) modifying "Day." The numeral "9 11" is appended to this core name. It functions as an identifier, specifying the date and historical context of this particular observance. Syntactically, "9 11" acts as either an adjectival phrase modifying "Patriot Day" or as an appositive that renames and clarifies it. In either case, the entire string "patriot day 9 11" operates as a single, cohesive nominal unit.
Establishing this term as a proper noun is the crucial analytical step for the article. This classification dictates that the phrase should be treated as the name of the subject, not merely a description. It guides sentence structure, ensuring the term is used as a subject, object, or object of a preposition. This grammatical understanding ensures precision, clarity, and the appropriate formal tone when discussing the official day of remembrance for the September 11th attacks.
