The keyword term "when is veterans day tomorrow" is an interrogative clause. It is not a single part of speech but a complete grammatical structure that functions as a direct question. This clause is composed of an interrogative adverb ("when"), a verb ("is"), a proper noun subject ("Veterans Day"), and another adverb ("tomorrow"). Its primary grammatical function is to solicit information.
In a broader linguistic or analytical context, such as search engine analysis, an entire clause like this can be treated as a single conceptual unit. When used as the subject or object of another sentence (e.g., "The search for 'when is veterans day tomorrow' spikes annually"), the entire phrase functions as a nominal clause or, more simply, a noun phrase. In this role, the question itself becomes the "thing" being discussed, analyzed, or acted upon.
For the purpose of constructing an article around this keyword, the most practical and accurate designation is to identify it as an interrogative clause that functions as a noun phrase when it is the topic of discussion. This distinction allows for a clear analysis of the user's intent (the question) while also enabling the construction of grammatically correct sentences about the search term itself (the noun phrase).
