Nouns

(n)hunger, hungrinessa physiological need for food; the consequence of food deprivation
(n)hunger, hungriness, thirst, thirstinessstrong desire for something (not food or drink)“a thirst for knowledge”, “hunger for affection”

Verbs

(v)hungerfeel the need to eat
(v)crave, hunger, thirst, starve, lusthave a craving, appetite, or great desire for
(v)starve, hunger, famishbe hungry; go without food“Let's eat — I'm starving!”