What is the meaning of the furniture term Grain?

In the context of furniture, the term grain refers to the texture, patterns, and arrangement of fibers found in the wood used to make the furniture. It specifically describes the direction in which the wood fibers run, as well as the unique patterns and markings that may be visible on the surface. The grain of wood is determined by its growth rings and can greatly affect the aesthetic appeal and overall quality of the furniture. When boards are cut, the cross section fo the wood fibers reveal arrangements in patterns.