1.
To ~ something such as a disagreement means to stop it, usually in a forceful or sudden way.
Every time a new flicker of resistance appeared, the government snuffed it out...
The recent rebound in mortgage rates could ~ the housing recovery.
PHRASAL VERB: V n P, V P n (not pron)
2.
If you ~ a small flame, you stop it burning, usually by using your fingers or by covering it with something for a few seconds.
Tenzin snuffed out the candle.
PHRASAL VERB: V P n (not pron), also V n P