/ Dictionary / Index T thirst: Meaning and Definition of Find definitions for: thirst Pronunciation: (thûrst), [key] — n. a sensation of dryness in the mouth and throat caused by need of liquid. the physical condition resulting from this need, in any of various degrees: They almost died of thirst. strong or eager desire; craving: a thirst for knowledge. —v.i. to feel thirst; be thirsty. to have a strong desire. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thirst (Thesaurus) thirl thirsty Related Content Daily Word Quiz: serendipity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language