Guideline 3.1 Readable

Make text content readable and understandable

3.1.1 Language of Page

Level A
The default human language of each Web page can be programmatically determined.

3.1.2 Language of Parts

Level AA
The human language of each passage or phrase in the content can be programmatically determined except for proper names, technical terms, words of indeterminate language, and words or phrases that have become part of the vernacular of the immediately surrounding text.

3.1.3 Unusual Words

Level AAA
A mechanism is available for identifying specific definitions of words or phrases used in an unusual or restricted way, including idioms and jargon.

3.1.4 Abbreviations

Level AAA
A mechanism for identifying the expanded form or meaning of abbreviations is available.

3.1.5 Reading Level

Level AAA
When text requires reading ability more advanced than the lower secondary education level after removal of proper names and titles, supplemental content, or a version that does not require reading ability more advanced than the lower secondary education level, is available.

3.1.6 Pronunciation

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