any plant of the grass family yielding an edible grain, as wheat, rye, oats, rice, or corn.

the grain itself.

some edible preparation of it, esp. a breakfast food.

of or pertaining to grain or the plants producing it.

noun

bran , breakfast food , corn , grain , oats , rice , rye , wheat , barley , buckwheat , farina , food , millet , mush , oat , oatmeal , porridge , ragi , soybean