thirst UK /θɜːst/US /θɝst/noun 4verb 2forms 5 noun4 •A sensation of dryness in the throat associated with a craving for liquids, produced by deprivation of drink, or by some other cause (such as fear, excitement, etc.) which stops the secretion of the pharyngeal mucous membrane.We developed a great thirst during our hike.He had quite a thirst on and so headed to his favourite Dublin pub. •The condition producing the sensation of thirst.If you go out in the desert for long without water, the thirst can drive you mad. •(figurative) A want and eager desire (for something); a craving or longing.She had a real thirst for news and that greatly helped her career. •(figurative) Sexual lust.He had a thirst for her and she had the same for him. verb2 •To be thirsty.The people thirsted there for water. — 1611 •To desire vehemently.I thirst for knowledge and education will sate me.to be thirsted for one's blood formsthirsted · thirsting · thirsteth · thirsts · thirstest