A wireframe in UI/UX is a basic design showing structure without visual details.A prototype in UI/UX simulates user experience for testing.Microinteractions in UI/UX enhance user experience subtly.Information Architecture organizes info to aid user navigation.Interaction Design focuses on users' interactions with products.User personas create profiles reflecting target users' needs and behaviors.User flow depicts steps users take to complete tasks.Responsive design adjusts to different devices for a seamless user experience.Heuristic evaluation identifies usability issues based on principles.Design systems enforce consistency in design elements.Dark patterns deceive users for business gains unethically.White space enhances design clarity by creating breathing room.Zero State is the initial state of an app or site with no data displayed.