As nouns the difference between cereal and millet
is that
cereal is a type of grass (such as wheat, rice or oats) cultivated for its edible grains while
millet is any of a group of various types of grass or its grains used as food, widely cultivated in the developing world.
As proper nouns the difference between cereal and millet
is that
cereal is a village in Alberta, Canada while
Millet is {{surname}.