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WCAG Guideline 3.1.6: Pronunciation Explained

Estimated read time: 5–6 minutes

Guideline 3: Understandable

The Understandable principle ensures that web content is clear and predictable, including how words are pronounced.

Guideline 3.1: Readable

Guideline 3.1 focuses on making text content readable and understandable, including pronunciation for words that may be ambiguous.

What Is Guideline 3.1.6 Pronunciation?

"A mechanism is available for identifying specific pronunciation of words where meaning of the words, in context, is ambiguous without knowing the pronunciation."

Guideline 3.1.6 requires a way to check pronunciation when it changes the meaning. Not all words are clear from spelling alone. This guideline fills that gap.

  • Helps users understand ambiguous or unfamiliar words
  • Essential for users with cognitive, learning, or language disabilities
  • Applies to all web content where pronunciation affects meaning

For more, see AccessGuide: Pronunciation & Ambiguous Words .

Why Does It Matter?
  • All Users: May struggle with ambiguous words
  • Screen Reader Users: Need correct pronunciation for comprehension
  • Accessibility: Improves understanding and reduces confusion

For more, see W3C’s guidance on Pronunciation .

What Needs Pronunciation Support?
  • Words whose meaning depends on pronunciation (e.g., "lead" as metal vs. verb)
  • Foreign terms or names
  • Any word where pronunciation is not obvious

How to Meet Guideline 3.1.6
  • Provide phonetic spelling, audio, or other pronunciation aids
  • Use accessible methods for screen readers
  • Test with users unfamiliar with the words

For more, see the W3C's Pronunciation Techniques .

Common Mistakes to Avoid
  • Not providing pronunciation for ambiguous words
  • Using inaccessible pronunciation aids
  • Failing to update pronunciation help as content changes

Differences Between A, AA, and AAA for Guideline 3.1.6 in WCAG 2.2
  • Level AAA: Requires a mechanism for identifying pronunciation where meaning is ambiguous.
  • Level AA: Not applicable (3.1.6 is a Level AAA requirement).
  • Level A: Not applicable (3.1.6 is a Level AAA requirement).

For more, see the W3C’s official documentation for 3.1.6 Pronunciation .

Quick Checklist
  • Pronunciation provided for ambiguous or unfamiliar words
  • Pronunciation aids are accessible
  • Tested with users unfamiliar with the words

Summary

Guideline 3.1.6 helps users know how words are spoken. This matters most when pronunciation changes the meaning. Provide clear and accessible pronunciation aids.

Next Up

Clear pronunciation means clear understanding—help every user get the meaning!