Patriots Day Calendar
The keyword term "patriots day calendar" functions as a noun phrase. The main part of speech, which serves as the grammatical head of the phrase, is the noun "calendar". The proper noun "Patriots Day" acts as a noun adjunct, modifying "calendar" to specify its type or theme. In this construction, "Patriots Day" performs an adjectival role, describing the noun that follows it. This is a common grammatical pattern where a noun is used to modify another noun, similar to phrases like "computer screen" or "holiday schedule." The function is to narrow the definition of "calendar" from a general object to one specifically associated with the events, dates, or observance of Patriots' Day. ...