以东 yǐdōng to the east of Origin Definitions Defs Strokes Stroke Words Sentences Sents 以 yǐ preposition [positional boundary] (bound form) used before words of location or time to indicate a boundary, such as 以后 yǐhòu or 以上 yǐshàng东 東 dōng noun east east; eastern; the direction where the sun rises