diet

noun

1.
a prescribed selection of foods
foodline
Derived from:
diet dietary dietetic dietetical dietician
2.
a legislative assembly in certain countries (e.g., Japan)
3.
the usual food and drink consumed by an organism (person or animal)
Derived from:
dietary dietetic dietetical dietician
4.
the act of restricting your food intake (or your intake of particular foods)
dieting
Derived from:
diet dietary dietician