稜角

由兩個平面交接形成嘅凸邊；椎體嘅尖端 (the edge or angle formed by two adjacent surfaces; the pointed end of a horn)

借指人倔強、愛惡分明、喜怒形於色嘅性格；也指人粗獷嘅面形、外形 (metonymy of one's character, who is unbending, have a clear-cut stand on love and hate and would express clearly the guts feeling; also means the square jaw or craggy outlook of someone)