1.VerbTo extinguish (literally, especially by physically covering or rubbing); to extinguish (figuratively): to stop (a process), to kill (a process)."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.; He sighed, snuffed out his cigarette, and got back to work.; He sighed, snuffed out his wish to walk right out the door, and got back to work."
2.VerbTo kill a living being."He sighed, stifled his urge to snuff out the moron who designed this work process, and got back to work."