noun
grade of wood; quality of wood
Refers to the classification or quality of wood, often in contexts like lumber grading or woodworking.
この材木は木口が良いので、家具に使えます。
This lumber is of good quality, so it can be used for furniture.
noun
end grain; cut end
The exposed end of a piece of wood when cut across the grain. Often seen in woodworking or carpentry contexts. Note: the reading こぐち is more common for this meaning, but きぐち is also used.
See also: 木口 (こぐち)
木口をきれいに仕上げるには、細かいサンドペーパーを使います。
To finish the end grain neatly, use fine sandpaper.
noun
wooden grip; wooden handle
Specifically a wooden grip or handle, such as on a handbag, tool, or umbrella. Not a general term for any wooden handle.
そのバッグの木口は、手にしっくりなじむ。
The wooden grip of that bag fits comfortably in the hand.