target audience

A target audience is the specific group of consumers most likely to buy your product or service, defined by shared traits like age, location, income, and interests. Instead of trying to market to everyone—which wastes time and budget—defining a target audience allows businesses to focus resources on the prospects who are genuinely interested in what they sell. Knowing this group guides every business choice, from product features to advertising design. Target Audience vs. Target Market

Though often used interchangeably, these terms have different scopes:

How to Find Your Target Audience – American Marketing Association