The term 'winning margin' can be broken down into three crossword solutions: HAIR (4 letters), EDGE (4 letters), and NOSE (4 letters). The term 'winning margin' is used to describe the difference between the scores of two teams or competitors in a game or competition. It is usually expressed as a number, and the team or competitor with the higher score is said to have won by that margin. The crossword solutions for this term allude to the idea of a winning margin, as HAIR, EDGE, and NOSE all refer to the idea of something being very close or narrow.