The term 'FOOTBALL Field Division' can be broken down into two words: 'YARD' and 'FOOTBALL'. 'YARD' is a four letter word which refers to a unit of measurement equal to three feet. It is commonly used to measure the length of a FOOTBALL field, which is typically 100 yards long. FOOTBALL is a sport played by two teams of eleven players on a rectangular field with goalposts at either end. The field is divided into two halves, each half being fifty yards in length.