What marketing is
Marketing is figuring out what a group of people want, making something that meets it, and getting those people to know about it, want it and buy it, at a price that leaves you a profit. The American Marketing Association's definition runs to a paragraph about creating, communicating, delivering and exchanging offerings. The short version is the one I'd use in a board meeting: marketing is how a business finds and keeps customers. Everything else is sub-bullets.
What marketing does, concretely, is four jobs, and most people only see one. It researches the market to find out who the customers are and what they value. It shapes the offer: what the product is, what it costs, where it's sold. It communicates: advertising, content, social, email, PR, the brand itself. And it measures whether any of that produced customers at a cost the business can afford. Advertising is the visible part. It's maybe a fifth of the work, and it's the fifth that gets the budget conversation because it's the fifth with an invoice.
The marketing of a business, in business terms, is the function responsible for demand. Sales converts the demand into revenue; operations delivers it; finance counts it. When someone says marketing "means" something, they mean the communications half. When a business isn't growing, it's almost always the other half, the research and the offer, that got skipped, and no amount of communications fixes an offer nobody wants.
Marketing is finding and keeping customers. Advertising is the loud fifth of it.
