The term "user feedback" in product development refers to the insights or opinions gathered from end-users about their experiences with a product or service. This feedback can help identify areas for improvement, validate features, and gauge user satisfaction. It can be collected through surveys, interviews, or usability tests, and is crucial for iterative development. By integrating user feedback, teams can make informed decisions, prioritize enhancements, and ensure that the product aligns with user needs and preferences.