hunger

(noun) a physiological need for food; the consequence of food deprivation. Synonyms: hungriness.

(noun) strong desire for something (not food or drink). Synonyms: hungriness, thirst, thirstiness. Examples: "A thirst for knowledge." "Hunger for affection."

(verb) feel the need to eat.

(verb) have a craving, appetite, or great desire for. Synonyms: crave, thirst, starve, lust.

(verb) be hungry; go without food. Synonyms: starve, famish. Example: "Let's eat--i'm starving!."