Glossary Accessibility Definitions for the accessibility terms that matter in digital work — WCAG, ARIA, screen readers, contrast ratios, and more. A reference for designers, developers, and anyone building inclusive digital experiences. » Accessibility Definitions for the accessibility terms that matter in digital work — WCAG, ARIA, screen readers, contrast ratios, and more. A reference for designers, developers, and anyone building inclusive digital experiences. All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Filter All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Alt Text / Accessibility Alt text describes an image on a webpage for search engines and screen readers. It provides context when an image cannot load and improves accessibility. D Diversity, Equity and Inclusion / Accessibility Diversity, Equity, and Inclusion (DEI) promotes fairness, access, and opportunity for everyone. It focuses on differences, equal access, and creating welcoming environments for all individuals.