green

In golf, the "green" refers to the putting green, a specially prepared area of closely mowed grass at the end of a hole. This smooth surface is where players use a putter to roll the ball into the hole. The hole itself is 4.25 inches in diameter and at least 4 inches deep.12

Turf grasses, such as bentgrass, are commonly used for these areas due to their ability to be cut very short, creating a dense and uniform surface. While "golf green" can also describe a specific color of yellowish-green, in the context of the sport, it primarily denotes the putting surface.345