extinguisher

noun

entity which extinguishes
device to put out fires

Wiktionary

Pronunciation: /ɪkˈstɪŋɡwɪʃə(ɹ)/ / /ɛkˈstɪŋɡwɪʃə(ɹ)/

noun

Etymology: Etymology tree English extinguish Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English extinguisher From extinguish + -er.

One who, or that which, extinguishes something.
One who, or that which, extinguishes something.