A dialect is a particular form of a language that is specific to a certain region or social group. It includes unique vocabulary, grammar, and pronunciation that distinguish it from other forms of the same language. For example, the English spoken in the southern United States may have different words and phrases compared to that spoken in the United Kingdom. Dialects can reflect cultural identity and heritage, often carrying historical significance. They can also evolve over time, influenced by factors such as migration and social change. Understanding dialects helps in appreciating the diversity within languages like English, Spanish, or Chinese.