日月 rìyuè sun and moon Definitions Defs Origin Strokes Stroke Words Sentences Sents rìyuè sun and moon · emperor and empress · Ri Yue 日 rì noun sun (bound form) the sun; sunlight月 yuè noun moon (bound form) the moon; lunarrìyuè time · life 日 rì nounadverb day a 24-hour period; the time it takes for the earth to rotate once on its axis月 yuè noun month month; a time unit based on the cycle of the moon, twelve of which make a year; also used for monthly occurrences or payments