In the keyword phrase "veterans' day sale," the main point and core part of speech is a noun. Specifically, the head of the noun phrase is the word "sale," which identifies the central subject or event being discussed.
Grammatically, the phrase is a compound noun. The word "sale" serves as the head noun, establishing the fundamental concept. The preceding words, "veterans' day," function together as an attributive noun or noun adjunct. This compound modifier specifies the type of sale, linking it to the occasion of the holiday. Within that modifier, "veterans'" is a possessive noun that modifies "day," indicating whose day it is. However, the entire preceding unit modifies the final noun, "sale," which remains the grammatical anchor of the phrase.
Recognizing "sale" as the main noun is crucial because it defines the article's focus. The subject is a commercial event, not the holiday itself. This determination guides the content toward topics like discounts, consumer behavior, and retail marketing strategies associated with the event, rather than a historical or commemorative exploration of Veterans' Day.