日晷 rìguǐ sundial Origin Definitions Defs Strokes Stroke Words Sentences Sents rìguǐ sundial 日 rì noun sun (bound form) the sun; sunlight晷 guǐ sundial (bound form) a sundial; an ancient instrument used to measure time by observing shadows cast by the sunrìguǐ sun's shadow 日 rì noun sun (bound form) the sun; sunlight晷 guǐ shadow cast by sun (literary) the shadow of the sun; sunlight