The keyword term "patriot day pronunciation" functions as a noun phrase. This construction, common in English, combines multiple words to act as a single noun, referring to a concept, an object, or in this case, a specific linguistic aspect.
In this phrase, "Patriot Day" itself is a proper noun, designating a particular observance. When placed before "pronunciation," it modifies "pronunciation" by specifying which pronunciation is being referred to. "Pronunciation" is the head noun, which is a common noun denoting the manner in which a word or language is spoken. Therefore, "Patriot Day" serves an attributive or adjectival function within the noun phrase, clarifying the subject of the pronunciation. The entire unit collectively refers to the phonetic articulation of the proper noun "Patriot Day."
Consequently, "patriot day pronunciation" operates as a cohesive unit within a sentence, representing the specific sound patterns and stress of the name "Patriot Day." It would typically serve as the subject or object of a verb, or as the object of a preposition, consistent with the grammatical role of a noun phrase.