聖せい寿じゅせいじゅMeanings1nounimperial age; emperor's lifeHonorific term used in historical or formal contexts to refer to the age or life of the emperor. Rare in modern everyday language.古ふるい文ぶん献けんには「聖せい寿じゅ万ばん歳ざい」と記しるされている。Old documents record the phrase 'long live the emperor'.