From Longman Dictionary of Contemporary Englishsnuff something/somebody ↔ out phrasal verb1 STOP something THAT IS HAPPENINGto stop a candle burning by pressing the burning part with your fingers or by covering it2 STOP something THAT IS HAPPENINGto stop or end something in a sudden way a rebellion that will snuff out democracy3 informalDIE to kill someone a young woman snuffed out by an unknown killer → snuff→ See Verb table
Examples from the Corpus
snuff out• Outside the cold wind snuffed the taper out. 