The Chinese word 手雷 (shǒulei), meaning "hand grenade," is a compound noun formed through semantic combination: the first character 手 (shǒu) means "hand," indicating the method of deployment, while the second character 雷 (léi) means "thunder," serving as a metaphor for the explosive blast and sound. Thus, the term literally translates to "hand-thunder," vividly and efficiently describing a small, hand-thrown explosive device through its functional (hand-operated) and descriptive (thunder-like) components.