The keyword phrase "911 usd" functions as a noun phrase. It represents a specific monetary value and acts as a single grammatical unit that names a concept or entity.
This phrase is composed of two distinct parts that work together. The number "911" is a cardinal number that functions as a quantitative determiner, which is a type of adjective. It specifies the quantity. The second part, "usd," is an abbreviation for "United States Dollar," which is a proper noun identifying the unit of currency. When combined, the determiner "911" modifies the noun "usd," creating a noun phrase that syntactically behaves as a noun within a sentence (e.g., "The refund was 911 usd.").
For the purpose of defining the main point of an article, the keyword "911 usd" should be treated as a noun. This classification is critical because it establishes the article's subject as a specific thinga particular sum of money. This informs the content strategy, ensuring the focus remains on topics related to this specific value, such as its cost, price, value, or significance in a particular context.
