SAT GRE TOEFL IELTS extinct Definition No longer in existence, especially of a species that has died out. Example "The dodo bird is now extinct." Sign in to save SAT Quiz → GRE Quiz → TOEFL Quiz → IELTS Quiz → ← external extinction → Study tips featuring "extinct" Spot the Vocabulary Trap in Every Question Audit Your Own Writing to Find Gaps Write GRE Words Into Your Own Sentences Related words SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal SAT abominable