What is the term for a name, symbol, or design used to identify a product?

The term that accurately describes a name, symbol, or design used to identify a product is "brand." A brand encompasses the overall identity of a product or service, including its name, logo, and any associated symbols that convey its unique qualities and values to consumers. A strong brand helps differentiate a product from competitors and establishes an emotional connection with customers.

While a trademark specifically refers to the legal protection of a brand’s name or logo to prevent unauthorized use, the broader term "brand" includes both the trademark and the product's image in the market. A logo is a specific part of a brand, serving as the visual representation of the brand identity. A slogan is a phrase used in marketing to convey a key message about the brand, but it does not encompass the full identification of the product. Therefore, "brand" is the most comprehensive and correct term for identifying a product.