extingˈuishant noun

A substance used to extinguish fires

extingˈuisher noun

1. Someone or something that extinguishes
2. A small hollow conical instrument for putting out a candle, etc
3. A device for putting out fire
4. A conical structure resembling a candle extinguisher

extingˈuishment noun

1. The act of extinguishing
2. Putting an end to a right by consolidation or union (law; historical)