外孙 wàisūn maternal grandson Origin Definitions Defs Strokes Stroke Words Sentences Sents 外 wài noun maternal/female-side (bound form) referring to relatives on one's mother's, sister's, or daughter's side孙 孫 sūn noun grandchild (bound form) grandchild; offspring of one's children, like 孙子 sūnzi or 孙女 sūnnǚ