A megamenu is a large, expanded dropdown menu that appears when a user hovers over or clicks a main navigation item. It displays multiple options and levels of content in a single panel, often using columns or grids.
Megamenus can help organise complex site structures by showing users lots of options at once without overwhelming them. They’re common on large websites with lots of content, like eCommerce stores. The goal is to help visitors find what they need more quickly.
See also: User interface design, Breadcrumbs
Further reading: The Anatomy of a Good Website Homepage Design
