佛之異名。涅槃經謂天有五種，佛為第一義天，是天中之最尊者，故云天尊。無量壽經上曰：「今日天尊行如來德。」同淨影疏曰：「天尊是佛異名，天有五種，如涅槃說。佛於五天中上，故曰天尊。」
The most honoured among devas, a title of a Buddha, i. e. the highest of divine beings; also used for certain maharāja protectors of Buddhism and others in the sense of honoureddevas. Title applied by the Daoists to their divinities as a counterpart to the Buddhist 世尊.
佛的別名。