榫头

榫头	sǔn tou	tenon (wooden projection to fit into a mortise)
榫	sǔn	(cabinetmaking) tenon
头	tóu	head / hair style / the top / end / beginning or end / a stub / remnant / chief / boss / side / aspect / first / leading / classifier for pigs or livestock / CL:个
头	tou	suffix for nouns