星期几 xīngqījǐ what day of the week Definitions Defs Origin Strokes Stroke Words Sentences Sents 星期 xīngqī noun day of the week day of the week; used in combination with numerals to form the names of days几 幾 jǐ numeral how many Used as a question word to ask about a quantity, time, or order, usually when the expected number is small (ten or fewer).