Oo

n.

1. Material, usually of plant or animal origin, that contains or consists of essential body nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals, and is ingested and assimilated by an organism to produce energy, stimulate growth, and maintain life.

2. A specified kind of nourishment: breakfast food; plant food.

3. Nourishment eaten in solid form: food and drink.

4. Something that nourishes or sustains in a way suggestive of physical nourishment: food for thought; food for the soul.