quench quench /ˈkwɛntʃ/

verb

1. () Satisfy (thirst)  ( allay , assuage , slake , quench )
   satisfy (thirst)
    The cold water quenched his thirst
   The cold water quenched his thirst
   
2. Cool (hot metal) by plunging into cold water or other liquid  ( quench )
   cool (hot metal) by plunging into cold water or other liquid
    Quench steel
   quench steel
   
3. (physics) reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance  ( quench )
   (physics) reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance
   
4. Suppress or crush completely  ( quench , squelch [Informal] , quell )
   suppress or crush completely
    Squelch any sign of dissent
   squelch any sign of dissent
    Quench a rebellion
   quench a rebellion
   
5. Electronics: suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device  ( quench )
   electronics: suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device
   
6. Put out, as of fires, flames, or lights  ( blow out , extinguish , quench , snuff out )
   put out, as of fires, flames, or lights
    Too big to be extinguished at once, the forest fires at best could be contained
   Too big to be extinguished at once, the forest fires at best could be contained
    Quench the flames
   quench the flames
    Snuff out the candles
   snuff out the candles