Isolate languages are languages that have no known relatives or connections to other languages. This means they do not belong to any language family, making them unique in their structure and vocabulary. An example of an isolate language is Basque, spoken in parts of Spain and France. These languages often develop in isolated communities, leading to distinct linguistic features. Because they lack related languages, studying isolate languages can provide insights into human language development and cultural history. Other examples include Ainu in Japan and Korean, although the classification of Korean is sometimes debated.