In the clause "September 11 is holiday," the key term for analysis is the predicate noun "holiday." "September 11" acts as the subject, a proper noun phrase identifying a specific date. "Is" functions as a linking verb, equating the subject with the word that follows. Therefore, "holiday" serves as a predicate nominative, a noun that renames and defines the subject. An article based on this keyword would center on defining, affirming, or refuting the classification of September 11 by the specific attributes associated with the noun "holiday."
In the United States, September 11 is not a federal holiday, which typically involves the closure of federal offices, schools, and banks. Instead, it is officially designated by law as Patriot Day and a National Day of Service and Remembrance. This classification establishes it as a national observance, a day for solemn commemoration rather than celebration or leisure. The day is marked by specific protocols, such as flying the U.S. flag at half-staff and observing moments of silence, to honor the individuals who lost their lives in the 2001 terrorist attacks. The emphasis is on civic action, community service, and solemn reflection.
The grammatical analysis directly informs the thematic focus. By identifying "holiday" as the defining noun, the core task becomes an exploration of its semantic appropriateness. The practical application is to distinguish between a "holiday" and a "day of observance." While both designate a day of national significance, their connotations and prescribed activities differ fundamentally. The term "holiday" often implies festivity and rest, which is incongruous with the tragedy commemorated on September 11. Therefore, the correct and official designation is one of remembrance and service, a status that accurately reflects the day's solemn purpose.