Lawn turf is a type of grass that is grown and used for landscaping purposes. It is also known as SOD, which is a three-letter word that is commonly used to describe this type of grass. Lawn turf is typically grown in large rolls or mats and is used to cover large areas of land. It is often used to replace existing grass or to create a new lawn. It is also used to create a more uniform look and to reduce the amount of maintenance required for a lawn.