The term 'trade for cash' can be summarized as the act of exchanging goods or services for money. This is a common practice in business, and it is often used to facilitate transactions between buyers and sellers. The crossword solution for this term is 'REDEEM, ' which means to exchange something for money or to receive something in return for payment. Redeeming items for cash is a common way to make purchases, and it is also a way to get rid of unwanted items.