Pop-up
Pop-up is a lightweight overlay or small window that appears above the current screen, prompting users for a quick decision or selection.
A pop-up is a brief overlay or small window that appears above the main interface, usually requesting a decision or displaying a short list of commands. It disappears as soon as the user interacts with an option or cancels it, preventing prolonged obstruction.
Pop-ups are ideal for lightweight tasks like confirming a deletion, choosing from a compact set of filters, or reading a short announcement. Their ephemeral nature means they don’t permanently change the layout; they simply prompt or inform, then fade away, preserving the user’s context.