/ Dictionary / Index Q quench: Meaning and Definition of Find definitions for: quench Pronunciation: (kwench), [key] 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. to terminate (the flow of electrons in a vacuum tube) by application of a voltage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: quench (Thesaurus) Quemoy quenchless Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language