A flagship product is a company's most prominent and recognized product, often seen as the symbol of its brand. However, sometimes a company may need to find alternative synonyms to describe this key product, for marketing or other purposes. Some possible options include "signature product," which implies that the item is the crowning achievement of the company's product lineup, or "showcase product," which suggests that it represents the best features or capabilities of the company's products. Other options may include "flag bearer product," "primary product," or "core product," all of which highlight the importance of the item to the company's overall success.