孝子 xiàozǐ filial son (obedient son) Origin Definitions Defs Strokes Stroke Words Sentences Sents xiàozǐ filial son (obedient son) · child-serving parent · filial son (ritual self-reference) 孝 xiào adjective filial; filial piety devoted to and respectful of one's parents; the duty or respect a child owes their parents子 zǐ noun son (bound form) son; child; offspringxiàozǐ son in mourning 孝 xiào mourning period the period of mourning or the rituals and customs observed after the death of an elder子 zǐ noun son (bound form) son; child; offspring