1) Unit of area 
The square yard (Northern India: gaj) is an imperial unit of area, formerly used in most of the English-speaking world but now generally replaced by the square metre outside of the U.S., Canada and the U.K. It is defined as the area of a square with sides of one yard (three feet, thirty-six inches, 0.9144 metres) in length. ==Symbols== There is no...
[n] - a unit of area equal to one yard by one yard square
sq yd noun a unit of area equal to one yard by one yard square