term
A word or phrase with a corresponding definition.
Document structure roles describe structures that organize content in a page. Document structures are not usually interactive.
Description
New in ARIA 1.1
A word or phrase with a corresponding definition. See related definition.The term role is used to explicitly identify a word or phrase for which a definition has been provided by the author or is expected to be provided by the user.
Authors SHOULD NOT use the term role on interactive elements such as links because doing so could prevent users of assistive technologies from interacting with those elements.
Example
Characteristics
Semantic HTML
Reference