The keyword term functions grammatically as a noun phrase. In this construction, the entire group of words acts as a single noun to name a specific concept or event: a potential holiday designated for the following day, which is September 11. The head noun, or the central word of the phrase, is "holiday," with the other words serving to modify and specify it.
A detailed grammatical breakdown shows that "holiday" is the core noun. The word "tomorrow" functions as a temporal modifier, specifying the time frame; in this context, it behaves like an adjective describing when the holiday is. The date "september 11" is a proper noun phrase that acts as a noun adjunct, post-modifying "holiday" to identify which specific day is being referenced. This type of non-standard syntax, where modifiers are concatenated around a noun, is common in headlines and search engine queries to create a compact, self-contained conceptual unit.
Understanding this phrase as a noun is crucial for its application within an article. It establishes the central topic that the article will define, describe, or analyze. The phrase can then serve as the subject or object in sentences, such as, "The debate surrounding a [holiday tomorrow september 11] is multifaceted." This grammatical determination dictates that the article's focus must be on the concept named by the phrase, rather than treating the words as separate, disconnected components of a sentence.
