1.nounA 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 spots the secretion of the pharyngeal mucous membrane
2.nounThe condition producing the sensation of thirst.
3.nounA want and eager desire (for something); a craving or longing.
"a thirst for gold"
4.nounSexual lust
5.verbTo be thirsty.
6.verb(usually followed by "for") To desire vehemently.
"I thirst for knowledge and education will sate me."