上旬 Traditional form: 上旬 Pinyin (reading): shàngxún Definitions: first third of a month Characters: 上 - above, on top, superior; to go up; to attend; previous 旬 - ten-day period; period of time Traditional characters: 上 - above, on top, superior; to go up; to attend; previous 旬 - ten-day period; period of time