Nouns

(n)thirst, thirstinessa physiological need to drink
(n)hunger, hungriness, thirst, thirstinessstrong desire for something (not food or drink)“a thirst for knowledge”, “hunger for affection”

Verbs

(v)thirstfeel the need to drink
(v)crave, hunger, thirst, starve, lusthave a craving, appetite, or great desire for