A language isolate is a natural language that has no known relatives or connections to other languages. This means it does not belong to any language family, making it unique in its structure and vocabulary. Examples of language isolates include Basque in Europe and Ainu in Japan. Language isolates can provide valuable insights into human communication and the development of languages. They often preserve ancient linguistic features that may have been lost in related languages. Studying these languages helps linguists understand the diversity and evolution of human language.