to slake, satisfy, or allay (thirst, desires, passion, etc.).

to put out or extinguish (fire, flames, etc.).

to cool suddenly by plunging into a liquid, as in tempering steel by immersion in water.

to subdue or destroy; overcome; quell

to quench an uprising.

Electronics . to terminate (the flow of electrons in a vacuum tube) by application of a voltage.

verb

set , start , dissatisfy

verb

annihilate , check , choke , crush , dampen , decimate , demolish , destruct , dismantle , douse , end , kill , knock down , moisten , put down , put out , quash * , quell , raze , ruin , shatter , smother , snuff out * , stifle , suppress , wreck , allay , alleviate , appease , assuage , content , cool * , glut , gorge , gratify , lighten , mitigate , relieve , sate , satiate , slake , snuff out , burke , gag , hold back , hold down , hush , muffle , squelch , strangle , throttle , choke off , extinguish , quash , squash , destroy , satisfy