The keyword term "911 fm" functions as a noun. Specifically, it operates as a proper noun or a compound noun, designating a particular entity, service, or concept that is the central subject of the article.
Grammatically, the term is a noun phrase where "911" acts as a noun adjunct (a noun used as an adjective) that modifies the core noun "fm" (an abbreviation, likely for Frequency Modulation or part of a station's name). This structure creates a single, specific identifier. As a noun, it can serve as the subject of a sentence (e.g., "[The term] is a new broadcast initiative."), the object of a verb, or the object of a preposition, establishing it as the primary topic for discussion and analysis.
Determining its function as a noun is the critical first step because it frames the article's purpose: to define, describe, or explain a specific thing. The content will subsequently treat the term as a subject to be explored, rather than as a descriptor (adjective) modifying another noun or an action (verb) being performed. This classification dictates the entire expository approach of the text.
