一日三秋 yīrìsānqiū one day feels like three years Origin Definitions Defs Strokes Stroke Words Sentences Sents 一 yī numeral one one; the number 1; single; alone日 rì nounadverb day a 24-hour period; the time it takes for the earth to rotate once on its axis三 sān numeral three the number three; 3秋 qiū year (bound form) year; used to refer to time or a person's age