The keyword phrase "sep 11 youtube" functions grammatically as a compound noun. In this construction, the term "sep 11" acts as a noun adjunct (or noun modifier) that specifies the type of content found on the platform identified by the head noun, "YouTube."
This grammatical structure is composed of two proper nouns. "Sep 11" identifies the historical events of September 11, 2001, and modifies the second noun, "YouTube," which is the name of the video-sharing service. The combination creates a single, specific semantic unit: the entire corpus of video content on the YouTube platform pertaining to the September 11th attacks. This includes news footage, documentaries, personal testimonials, conspiracy theories, and commemorative videos. The phrase operates similarly to other compound nouns like "kitchen table" or "space station," where the first noun clarifies the nature or context of the second.
Determining the part of speech as a noun is critical because it establishes the subject of the article. The main point is not to describe an action (verb) or a quality (adjective), but to define, analyze, or discuss this specific category of digital content as a phenomenon. An article centered on this keyword would therefore explore what "sep 11 youtube" isa digital archive, a platform for discourse, a source of misinformation, or a collection of cultural artifactsmaking the noun classification fundamental to its thematic focus.
