(colloquial) daughter's son; grandson

the son of one's son's son; also called [[曾孙|曾孫|zeng1 sun1]] or [[曾孙子|曾孫子|zeng1 sun1 zi5]]

the son of one's grandson; grandson's son

To pretend to be weak, helpless, or ignorant to avoid trouble or deceive others; to play the fool.

Sun Bin's Art of War, an ancient Chinese military treatise from the Warring States period

(colloquial) a term of abuse meaning bastard or son of a bitch

The famous ancient military treatise written by [[孙武|孫武|sun1 wu3]] (also known as [[孙子|孫子|sun1 zi3]]); it is considered one of the earliest and most influential works on military strategy and tactics.

the Chinese remainder theorem in number theory