かわkawaku
1.

To experience a strong desire for moisture, particularly in the mouth, often resulting in a need to drink liquids.

2.

To lack something essential and yearn profoundly for it, as in the case of longing for love or care that is absent.

3.

To undergo a state where natural moisture is lost, resulting in dryness, often leading to an urgent demand for hydration.

4.

To find oneself in a condition of deprivation, desperately seeking what is missing or needed for comfort or satisfaction.

Example:

お腹が空いたし、のども渇いた。