Common Mistakes : Extinguish

verb

.BAD: Many species are becoming extinguished .GOOD: Many species are becoming extinct

: extinguish = make something stop burning .Before entering the factory, please make sure that all cigarettes have been properly extinguished

: extinct = (of a type of animal or plant) completely non-existent, because every single one has died or been killed .If nothing is done to save the whales now, the species will soon become extinct