祥しょう瑞ずいしょうずいMeanings1noungood omen; auspicious signA formal or literary term for a sign that foretells good fortune. Often used in historical or ceremonial contexts.白しろい鹿しかの出しゅつ現げんは祥しょう瑞ずいとされた。The appearance of a white deer was considered a good omen.