Cereal

1. A type of grass (such as wheat, rice, or oats) cultivated for its edible grains. We often have oat meal cereal for breakfast.
2. The grains of such a grass. Cereals are big crop in the U.S.A.
3. Breakfast cereal. Would you like some cereal?
4. A particular type of breakfast cereal. Which cereal would you like for breakfast?