grain
Definitions
A small, hard seed or seed-like fruit of a cereal plant.
The longitudinal arrangement of fibers in wood or the texture of a surface.
A very small particle or unit of a substance, such as sand or salt.
Examples
The farmer harvested the golden grain before the storm arrived.
There is not a grain of truth in his elaborate story.
The wooden table had a beautiful, natural grain that stood out under the light.