Which solar term refers to "beginning of winter, where everything is harvested to avoid the cold"?

Our understanding of "beginning of winter" cannot stay in the sense of beginning of winter. Tracing back to the source, the ancient people's understanding of "ceremony", like modern people, means establishment and beginning. However, the word "winter" is not so simple. In the ancient book "Twenty-four solar terms", the explanation of "winter" is: "Winter is the end, everything is harvested", which means autumn.