孝xiào 1.孝顺{filial}: ～子{dutiful son}|尽～。{show filial piety to one's parents} 2.〈旧时old〉尊长死后在一定时期内遵守的礼俗{conventional mourning rites for a deceased elder member of one's family}: 守～。{be in mourning} 3.丧服{mourning clothes}: 穿～{dress in mourning}|带～。{wear mourning for a parent or relative} 4.(Xiào)姓。{a surname}