Menus

Menus appear at multiple levels of a site's navigation and hierarchy. At the top level, every page has the global navigation menus display. Within a page, specific areas may have local navigation menus, and specific elements of a page (such as a row of a table) may have application menus for taking action on those elements. 

Accessibility

• Creating Accessible Menus and Mega Menus by Level Access explains how to make menus that behave the way users expect, regardless of their accessibility needs.

h2. Additional Resources

• [10 ways to design menus that don't suck|https://www.webdesignerdepot.com/2017/06/10-ways-to-design-menus-that-dont-suck/?utm_campaign=Weekly%20Digest&utm_source=hs_email&utm_medium=email&utm_content=53589548&_hsenc=p2ANqtz-89YXvhW9LIaBBlvKQSvZz7FBvxeohIEq9kuoWWitEqaGMcXPfwppBdP2NReQKyKn1iDrY4Lx-Dijz0CqmDMgiY4MgRlA&_hsmi=53589549] by Carrie Cousins on web Designer Depot talks about ways to keep global navigation from being awful. 
• [Don't Use Aria Menu Roles for Site Nav|http://adrianroselli.com/2017/10/dont-use-aria-menu-roles-for-site-nav.html] by Adrian Roselli pretty much sums itself up in the title.