The term 'Symbol of Surrender' can be represented by two crossword solutions: TOWEL (5 letters) and Whiteflag (9 letters). A TOWEL is a common symbol of surrender in sports, such as boxing or wrestling, where the defeated fighter will throw a TOWEL into the ring to signify their defeat. The white flag is a more widely recognized symbol of surrender, used in military contexts to indicate that a party is willing to cease hostilities and negotiate a truce.