A brand portfolio refers to a collection of different brands under one overarching organization or parent company. It's a way for businesses to manage multiple products, services, or business units that may have unique identities but also share common characteristics or values. There are several synonyms for the term brand portfolio, including brand architecture, brand family, brand ecosystem, brand system, and brand hierarchy. Each of these terms implies a specific approach to managing a network of brands, from a structured and hierarchical system to a more organic and fluid ecosystem. Regardless of the term used, a brand portfolio is a strategic tool for businesses to optimize their marketing efforts and create a cohesive identity across their various brand offerings.