The keyword term "patriot day greetings" functions as a noun phrase.
In this phrase, "greetings" serves as the head noun, denoting expressions of goodwill, salutations, or messages of remembrance. The compound proper noun "Patriot Day" acts adjectivally, modifying "greetings" by specifying the occasion or context to which these greetings pertain. Thus, "Patriot Day" clarifies the nature of the greetings, indicating they are specifically for or related to the observance of Patriot Day.
Consequently, the entire construction "patriot day greetings" operates as a singular conceptual unit, representing a collection of messages or well-wishes specifically associated with the national day of observance, thereby functioning grammatically as a noun phrase.
