To put out, as in fire; to end burning; to quench.
To obscure or eclipse something.
To hunt down (a species) to extinction.
To bring about the extinction of a conditioned reflex.
To destroy or abolish something.
To die out.
To kill.
To close, terminate, or end.
To pass (another vehicle), especially quickly.
To turn off or stop.
To emotionally withdraw into oneself as a defense mechanism; to block out external stressors.