About
The character "密" structurally integrates the mountain radical "山" with the cover radical "宀" and the component "必", which historically functioned as a phonetic indicator, to convey initial meanings centered on topographic density and enclosed spaces. Its early usage referred to the thickness of vegetation or the ruggedness of mountains, implying natural barriers and seclusion. From these physical associations, the meaning broadened to encompass the idea of secrecy, as dense materials obscure and protect, leading to applications in contexts of confidentiality and hidden matters. Additionally, the concept of density was extended to describe close relationships or intimate connections, illustrating a semantic shift from concrete environmental features to abstract interpersonal qualities. Throughout its development, the character has maintained a consistent form while accruing layered meanings that stem from its original pictorial and ideographic elements.
Etymology Hide
Example Sentences Hide
我知道你的秘密。
密码必须保密。
他们关系很密切。
森林里树木茂密。
这座城市人口稠密。
政府文件是机密的。
我们需要严密监视。
加密技术保护数据安全。