事亲至孝 shìqīnzhìxiào to be extremely filial Origin Definitions Defs Strokes Stroke Words Sentences Sents 事 shì to serve (bound form) to wait upon; to serve parents or a ruler亲 親 qīn noun [parents] (bound form) parents; father or mother至孝 zhìxiào extremely filial to be extremely filial; showing great devotion to one's parents