Level AAASince WCAG 2.0
3.1.3 Unusual Words
Guideline 3.1: Readable – Language is declared and text is understandable.
What does the rule require?
Jargon, idioms and unusual words are explained.
How to get it right
Explain technical terms right in the text or link to a glossary: “screen reader (a program that reads the screen aloud)”.
Who benefits most?
- People with cognitive disabilities
- People with dyslexia
Official wording
This page explains the rule in simple words. Only the original W3C text is normative.
- “Understanding Unusual Words” at W3C (external site)
- Techniques in the WCAG Quick Reference (external site)