The keyword phrase "patriot day words" functions primarily as a noun phrase. Within this construction, "words" is the head noun, serving as the core component that denotes the subject being discussed. The preceding term, "Patriot Day," modifies "words," specifying their context or occasion.
From a grammatical perspective, "Patriot Day" acts as an attributive noun (or an adjective formed from a proper noun) modifying "words." While "Patriot Day" itself is a proper noun referring to a specific observance, when placed before another noun like "words," it functions adjectivally to describe the type or purpose of those words. This is analogous to phrases such as "holiday songs" or "birthday greetings," where the initial noun clarifies the nature of the subsequent noun. Therefore, the phrase refers to the collection of expressions, speeches, tributes, or messages associated with Patriot Day.
Consequently, the main point of speech for the entire keyword phrase "patriot day words" is its function as a noun phrase, with "words" being the definitive noun. This classification is crucial for understanding its role in sentences, where it would typically serve as a subject, object, or complement, referring to the specific discourse related to Patriot Day.