Here's why:
* Dialect refers to a variety of a language that is specific to a particular region or social group. It often features unique pronunciations, vocabulary, and grammar compared to other varieties of the same language.
* Accent refers to the way someone speaks a language, including their pronunciation and intonation. While accent is often associated with a particular region, it's not the same as a dialect.
* Language refers to a system of communication that includes a set of rules for combining sounds, words, and sentences. Dialects are considered variations within a single language.
Example: American English, British English, and Australian English are all dialects of the English language. They share a common core vocabulary and grammar but differ in pronunciation, vocabulary, and sometimes grammar.