noun
Woodworking term for a projecting piece of wood that fits into a mortise (ほぞ穴). Also used metaphorically for a pivot or key element in a structure.
See also: ほぞ穴
この椅子の脚はほぞで固定されている。
The legs of this chair are fixed with tenons.
ほぞをほぞ穴に差し込んでください。
Please insert the tenon into the mortise.