snuff out

verb

1. To extinguish (literally, especially by physically covering or rubbing); to extinguish (figuratively): to stop (a process), to kill (a process).

   “Near-synonym: smother”

   “The risk of fire was an ever-present danger, and every night at bedtime they performed the ritual of checking that every candle and lantern had been snuffed out.”

2. To kill a living being.

   “He sighed, stifled his urge to snuff out the moron who designed this work process, and got back to work.”

3. To die.

   “People snuff out at all ages: accident apart, our vital clocks vary […]”