三九 sānjiǔ coldest days of winter Origin Definitions Defs Strokes Stroke Words Sentences Sents sānjiǔ coldest days of winter 三 sān numeral third the third in a series; ordinal number three九 jiǔ nine-day period (bound form) any of the nine nine-day periods following the winter solstice, collectively known as the eighty-one days of wintersānjiǔ high officials · three kinds of leeks 三 sān numeral three the number three; 3九 jiǔ numeral nine the number nine