noun (n)

• a deficiency of moisture (especially when resulting from a permanent absence of rainfall)(noun.state)

  Synonym:
  aridity, aridness
  

  source: wordnet30
• a physiological need to drink(noun.state)

  Synonym:
  thirst
  

  source: wordnet30
• strong desire for something (not food or drink)(noun.attribute)

  Synonym:
  hunger, hungriness, thirst
  

  source: wordnet30
• The state of being thirsty; thirst.(noun)

  source: webster1913