0 a rectangular hole in a piece of wood, stone, etc. into which another piece is fixed, so that they form a joint -- 榫眼，卯眼
A xed tenon was made by shaping the end of one timber to t into a mortise (hole) that is cut into a second timber.
The walls are structured with vertical and diagonal hand-hewn timbers also set with pegged mortise and tenon joinery at the sills and plates.
The beam can be fixed to the top of the post either by just resting upon it or via a mortise and tenon joint.
Early planes were made from wood with a rectangular slot or mortise cut across the center of the body.
It consists of a movable block with one or more dog holes in it, the movable block rides in a large mortise in the workbench.
It was built about 1920, and is a large, 2 1/2-story, mortise-and-tenon framed mill building, topped by an unusual and picturesque mansard roof.
For cutting small mortises, a normal drill bit can be used.
A mortise or slot is cut vertically in the bedpost.
