圭角 （ケイカク） rough edges (of one's character, words, etc.), abrasiveness, harshness, sharpness, edges (of a gem)

圭璧 （ケイヘキ） ritual jades worn by feudal lords in ancient China

刀圭 （トウケイ） medicine, art of medicine, doctor, dispensing spoon

尖形 （センケイ） pointed, pointy, acuminate

圭角 （ケイカク） rough edges (of one's character, words, etc.), abrasiveness, harshness, sharpness, edges (of a gem)

圭璧 （ケイヘキ） ritual jades worn by feudal lords in ancient China