圭角

noun

corner of a jade tablet; (fig.) sharpness or talent that stands out; (fig.) sign or indication

Literary term (书面语). Often used in set phrases such as 初露圭角 (showing one's talent for the first time) and 不露圭角 (hiding one's talent, being modest). The literal meaning refers to the pointed corner of a ceremonial jade tablet (圭), while the figurative meanings extend to both positive talent (锋芒) and neutral signs (迹象).