Chinese character lou

It means skull or skeleton in Chinese. Its useful job is inside compounds: 骷髅 is the plain word for a skull or skeleton, while 髑髏 uses the traditional 髏 and points specifically to a dead person's skull.

The sign was not designed as an emblem. Dictionaries analyze 髏 as 骨 plus the sound-bearing component 婁, a way to write the skull term. The oldest textual trail located here is the Warring States period Zhuangzi tradition, where a skull argues that death is free of social rank and life's burdens. In Six Dynasties stories, the skull image instead marks danger, fear, and exposed mortality. As of 2019, Chinese nuclear-safety guidance used a skull head for danger in radiation-protection signage.

When should you read it as more than a skull?

The compound, not the glyph alone, sets the tone. In 骷髅, read the complete word before assigning drama. In 髑髏, expect a literary or classical register and a dead person's skull. Using 髑髏 casually can sound deliberately old-fashioned; 骷髅 is the plain choice.

If someone sends only 髅, do not decode it as a death wish, threat, or dark-humor reaction by default. It is a typed CJK character, not an emoji token; the safest reading is a character fragment or clipped Chinese word until context supplies more.