Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
extinguishable is an adjective meaning "capable of being extinguished or killed". It carries one recorded sense.
capable of being extinguished or killed
“an extinguishable fire”
“hope too is extinguishable”
Definitions, synonyms and semantic relations for extinguishable come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.