尾骨

尾骨	wěi gǔ	coccyx / tailbone
尾	wěi	tail / remainder / remnant / extremity / sixth of the 28 constellations / classifier for fish
尾	yǐ	horse's tail / pointed posterior section of a locust etc
骨	gū	used in 骨碌碌 / used in 骨碌
骨	gǔ	bone