wheat or any other cultivated cereal crop used as food.
He now had two patches of grain and maize while apricots, cherries, plums and quince hung heavily from boughs covered in thick, grey lichen.
a single fruit or seed of a cereal.
a few grains of corn
the smallest unit of weight in the troy and avoirdupois systems, equal to 1 / 5760 of a pound troy and 1 / 7000 of a pound avoirdupois (approximately 0.0648 grams).
The ounce was approximately 450 grains , i.e. slightly heavier than the modern one.
the longitudinal arrangement or pattern of fibers in wood, paper, etc..
he scored along the grain of the table with the knife
a person's character or natural tendency.
And it doesn't go with the grain of human nature.