The Chinese word **凝固 (nínggù)**, meaning "to solidify" or "to coagulate," is a compound verb formed through the combination of two semantically related characters: **凝 (níng)**, which carries the meaning of "to congeal," "to concentrate," or "to fix," and **固 (gù)**, which means "solid," "firm," or "hard." In this **verb-resultative or verb-complement** structure, the first character **凝** denotes the process (congealing), while the second character **固** describes the resulting state (becoming solid). Together, they create a single, cohesive concept where the action inherently leads to a specific outcome, forming a word that is more specific and vivid than either character alone, effectively capturing the physical change from a liquid to a solid state.