日圭 rìguī jade tablet Definitions Defs Origin Strokes Stroke Words Sentences Sents rìguī jade tablet 日 rì noun sun (bound form) the sun; sunlight圭 guī jade tablet (bound form) an ancient ceremonial jade tablet held by nobles and rulers to signify rank; a flat jade scepter used in rituals and burialsrìguī sundial 日 rì noun sun (bound form) the sun; sunlight圭 guī sundial parts (bound form) the horizontal component of an ancient sundial used to measure the length of shadows to determine the seasons