The keyword phrase functions as a noun phrase where the main point, or head noun, is "closings". In this construction, "closings" is the central subject. The terms preceding it, "Patriots Day" and "2025", act together as a compound adjectival modifier specifying the particular set of closings being discussed. Therefore, the grammatical focus is not the holiday itself, but the state of being closed associated with it.
A detailed grammatical analysis shows "closings" as a plural noun, signifying a list, collection, or a general state of inoperation for various entities. The proper noun "Patriots Day" and the numerical adjective "2025" form a noun adjunct phrase. This phrase modifies "closings" by answering the questions "which ones?" and "when?". This structure subordinates the holiday and year to the primary subject, establishing a clear informational hierarchy. The core topic is the closings; the holiday is the context.
For the purpose of writing an article, this determination is critical. It dictates that the content should be structured as a service piece focused on providing practical information. The main point is to inform the reader about what specific services, institutions, and businesses (e.g., government offices, schools, banks, postal services) will be non-operational on that specific date. A historical or cultural overview of the holiday would be secondary or supplemental, not the primary focus, as the keyword's syntax prioritizes the consequence (closings) over the event (the holiday).