Advertising refers to communication whose purpose is to influence potential customers about products and services. It commonly describes the industry or profession made up of such communications, to give (especially public) notice of (something); to announce publicly, and to provide information about a person or goods and services to influence others, which gives the term a broader and more practical sense than a single short definition would suggest. Depending on context, it can also point to to provide public information about (a product, service etc.) in order to attract public awareness and increase sales, to notify (someone) of something; to call someone's attention to something, and in gin rummy, to discard a card of one's preferred suit so as to mislead the opponent into thinking you do not want it, so the category can cover literal uses, related ideas, and more figurative extensions of the same core meaning. Taken together, these meanings present Advertising as a flexible theme rather than a narrowly technical label, covering the central idea people usually mean when they use the word while still leaving room for closely related senses that appear in real language. Advertising therefore works well as a quotation category because it can hold direct statements about the subject, figurative uses that borrow its meaning, and broader reflections that stay anchored to the same central idea.
