Synonyms for Quench (same or very similar meaning)
WordNet sense 1 (put out, as of fires, flames, or lights):
extinguish, blow out, snuff outWordNet sense 2 (satisfy (thirst)):
allay, assuage, slakeWordNet sense 3 (suppress or crush completely):
quell, squelchFrom the ODE community, based on WordNetadd/edit