thirst  (thûrst)n.1. a. A sensation of dryness in the mouth and throat related to a need or desire to drink.b. The desire to drink.2. An insistent desire; a craving: a thirst for knowledge.intr.v. thirst·ed, thirst·ing, thirsts 1. To feel a need to drink.2. To have a strong craving; yearn.[Middle English, from Old English thurst; see ters- in Indo-European roots.]thirst?er n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.thirst (???st) n1. a craving to drink, accompanied by a feeling of dryness in the mouth and throat2. an eager longing, craving, or yearning: a thirst for knowledge. vb (intr) to feel a thirst: to thirst for a drink; to thirst after righteousness. [Old English thyrstan, from thurst thirst; related to Old Norse thyrsta to thirst, Old High German dursten to thirst, Latin torr?re to parch]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014thirst (??rst) n. 1. a sensation of dryness in the mouth and throat caused by need of liquid. 2. a need for liquid or moisture. 3. eager desire; craving: a thirst for knowledge. v.i. 4. to feel thirst; be thirsty. 5. to have a strong desire. [before 900; Middle English thirsten, Old English thyrstan, derivative of thurst] thirst?er, n. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.thirstPast participle: thirstedGerund: thirstingImperativePresentPreteritePresent ContinuousPresent PerfectPast ContinuousPast PerfectFutureFuture PerfectFuture ContinuousPresent Perfect ContinuousFuture Perfect ContinuousPast Perfect ContinuousConditionalPast ConditionalImperativethirstthirstPresentI thirstyou thirsthe/she/it thirstswe thirstyou thirstthey thirstPreteriteI thirstedyou thirstedhe/she/it thirstedwe thirstedyou thirstedthey thirstedPresent ContinuousI am thirstingyou are thirstinghe/she/it is thirstingwe are thirstingyou are thirstingthey are thirstingPresent PerfectI have thirstedyou have thirstedhe/she/it has thirstedwe have thirstedyou have thirstedthey have thirstedPast ContinuousI was thirstingyou were thirstinghe/she/it was thirstingwe were thirstingyou were thirstingthey were thirstingPast PerfectI had thirstedyou had thirstedhe/she/it had thirstedwe had thirstedyou had thirstedthey had thirstedFutureI will thirstyou will thirsthe/she/it will thirstwe will thirstyou will thirstthey will thirstFuture PerfectI will have thirstedyou will have thirstedhe/she/it will have thirstedwe will have thirstedyou will have thirstedthey will have thirstedFuture ContinuousI will be thirstingyou will be thirstinghe/she/it will be thirstingwe will be thirstingyou will be thirstingthey will be thirstingPresent Perfect ContinuousI have been thirstingyou have been thirstinghe/she/it has been thirstingwe have been thirstingyou have been thirstingthey have been thirstingFuture Perfect ContinuousI will have been thirstingyou will have been thirstinghe/she/it will have been thirstingwe will have been thirstingyou will have been thirstingthey will have been thirstingPast Perfect ContinuousI had been thirstingyou had been thirstinghe/she/it had been thirstingwe had been thirstingyou had been thirstingthey had been thirstingConditionalI would thirstyou would thirsthe/she/it would thirstwe would thirstyou would thirstthey would thirstPast ConditionalI would have thirstedyou would have thirstedhe/she/it would have thirstedwe would have thirstedyou would have thirstedthey would have thirstedCollins English Verb Tables © HarperCollins Publishers 2011