Yardgrass is a common term used to describe the type of grass typically found in residential yards. However, there are several synonyms that can be used to describe this type of grass. These include lawn grass, turf, groundcover, and sod. Lawn grass refers to the type of grass that has been specifically cultivated for use in residential lawns. Turf is typically used to describe a type of grass that has been rolled out or installed as a continuous layer. Groundcover is a broader term that can be used to describe any type of low-growing vegetation used to cover soil. Finally, sod is a specific type of grass that has been grown and harvested as a pre-grown carpet for installation in a yard.