The keyword term "11 september 2025 days" functions grammatically as a noun phrase. The core element, or head of the phrase, is the noun "days," which is being modified by the preceding date.
In this construction, the specific date "11 september 2025" acts as a multi-word noun adjunct. A noun adjunct is a noun or noun phrase that modifies another noun, functioning similarly to an adjective. For example, in the term "railway station," the noun "railway" modifies the noun "station." Here, the entire noun phrase "11 september 2025" specifies which "days" are the subject, making the entire term a single conceptual unit treated as a noun.
Determining this part of speech is crucial because it dictates that the article's subject matter should be treated as a specific entity, concept, or event. The focus is on the "days" themselves, as defined by that particular date. Consequently, the article should explore topics related to what those "days" represent, contain, or signify, rather than treating the keyword as an action (verb) or a descriptor (adjective) of something else.
