U+69F7 "槷" CJK Unified Ideograph-# Unicode Character

U+69F7 "槷" CJK Unified Ideograph-# is a rare and archaic Chinese character, traditionally pronounced as "nie" in Mandarin, that primarily refers to a wooden pivot or axle used in ancient machinery, particularly the central pin or hinge of a door or a pivoting mechanism in early Chinese engineering texts such as the *Kaogong Ji* (Artificers' Record). Its structure combines the "tree" radical (木) with a phonetic component suggesting tightness or adjustment, reflecting its role as a crucial turning point in mechanical devices. While seldom used in modern writing, it sometimes appears in classical literature or specialized discussions of historical technology.