"Single-Click" refers to a user interface feature that allows users to perform an action with just one click of a mouse or tap on a touchscreen. This design simplifies interactions, making it easier for users to navigate websites or applications without needing to go through multiple steps. It is commonly used in online shopping, where a single click can add items to a cart or complete a purchase. The concept of Single-Click is often associated with e-commerce platforms like Amazon, which popularized the feature to enhance user experience. By reducing the number of clicks required, Single-Click aims to streamline processes and increase efficiency, benefiting both users and businesses.