In digital marketing, a lead is a person or business that shows interest in what is being sold. This interest comes from an action like filling a form, joining an email list, or asking for details. That action shows they are not just passing by, but paying attention. A lead is not a buyer yet, and this part matters. It only means there is interest to work with. For example, someone who downloads a free guide from a website becomes a lead. Do you see this idea as helpful for growth?