adjective

1. 1. having died down or burned out; extinguished an extinct fire
   2. no longer active an extinct volcano
2. no longer in existence or use; specif., having no living descendant an extinct species
3. that no living person holds or can claim: said of offices, titles, etc.
4. no longer spoken as a native language

Etymology: ME < L extinctus, exstinctus, pp. of exstinguere: see extinguish