When is a language considered dead?
Language death
{'answer_start': array([38]), 'answer_text': array(['when a language loses its last native speaker'], dtype=object)}
In linguistics, language death occurs when a language loses its last native speaker. By extension, language extinction is when the language is no longer known, including by second-language speakers. Other similar terms include linguicide,[1] the death of a language from natural or political causes, and rarely glottophagy,[2] the absorption or replacement of a minor language by a major language.