verb put out, as of fires, flames, or lights.
— synonyms: snuff_out, blow_out, extinguish
verb electronics: suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device.
verb suppress or crush completely.
— synonyms: squelch, quell
verb reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance.
verb cool (hot metal) by plunging into cold water or other liquid.
Examples
“The library quenched her thirst for knowledge.”
“The swordsmith quenched the sword in an oil bath so that it wouldn't shatter.”