The keyword term "patriots day game red sox" functions primarily as a noun phrase. This composite structure, while comprising individual words with distinct grammatical classifications, operates cohesively to identify a specific event or entity. In its entirety, it refers to the annual Major League Baseball game played by the Boston Red Sox on Patriots' Day.
Deconstructing the phrase reveals its components: "Patriots Day" is a proper noun referring to a specific holiday, but in this context, it acts adjectivally as a noun adjunct modifying "game." Similarly, "Red Sox" is a proper noun identifying a specific sports team, also functioning adjectivally to describe which team's game is being referenced. The word "game" itself is a common noun, serving as the head noun of the phrase. When these elements combine, they form a unit that collectively names a unique occasion. Grammatically, such a phrase, functioning as a single conceptual unit (subject, object, or complement in a sentence), is categorized as a noun phrase, often colloquially termed a compound noun due to its highly specific and established meaning.
Therefore, while individual words within "patriots day game red sox" can be analyzed for their specific parts of speech (proper noun acting as adjective, common noun), the entire expression, as a designated keyword term for an article, operates as a complete noun phrase. This allows it to stand in for a single concept, event, or entity within discourse.
