[{"Bold_text": "adjective", "List Items": ["no longer in existence; having ended or died out:extinct pre-Colombian societies.", "Biology, Ecology.(of a plant or animal species) having no living member remaining anywhere, not in the wild, in a naturalized population, nor in captivity, as categorized by the IUCN Red List IUCN Red List::EXa list of extinct animals that once inhabited the Isle of Man.Synonyms: gone , defunct", "no longer in use; obsolete:an extinct custom.Synonyms: archaic", "extinguished; quenched; not burning:evidence of a half dozen extinct campfires.Synonyms: out", "Geology.(of a volcano) not having erupted for at least 10,000 years and not expected to erupt again.Compare active(def10) active(def10), dormant(def6) dormant(def6)."]}]