榫凿

mortise chisel

sǔn = su + (e)n3

tenon (cabinetmaking)

záo = z + ao2

chisel / to bore a hole / to chisel or dig / (literary) (bound form) certain / authentic / irrefutable / also pr. [zuo4]

榫凿 is not used as a component in another word.

榫凿 currently does not appear in any sentence.