八字帖儿(汉英拼音:bāzìtiěr ,英文cardofhoroscopepresentedbycandidateforbetrothal;writtenmarriageproposalonwhicharestatedtheyear,month,dayandhourofone'sbirth)旧俗订婚前写明各自生辰八字的帖子,双方互相交换保存。