WCAG 3.1.3 requires that websites provide a mechanism to identify the specific definition of words or phrases used in an unusual or restricted way, including idioms and jargon. This ensures that users with cognitive disabilities, non-native speakers, and those unfamiliar with specialized terminology can understand the content.

WCAG 3.1.3: Unusual Words

WCAG 3.1.5 requires that when content demands a reading ability beyond lower secondary education level, a supplemental version or summary written at a simpler level is provided. This ensures that users with cognitive disabilities, limited literacy, or language barriers can access and understand the information.

Plain Language

WCAG 3.1.3: Unusual Words

WCAG 3.1.5: Reading Level