A lawn is an area of soil-covered land planted with grasses and other durable plants such as clover which are maintained at a short height with a lawn mower and used for aesthetic and recreational purposes—it is also commonly referred to as part of a garden. Lawns are usually composed only of grass species, subject to weed and pest control, maintained in a green color, and are regularly mowed to ensure an acceptable length. Lawns are used around houses, apartments, commercial buildings and offices. Many city parks also have large lawn areas. In recreational contexts, the specialised names turf, pitch, field or green may be used, depending on the sport and the continent.

घास एक एकबीजपत्री हरा पौधा है। इसके प्रत्येक गाँठ से रेखीय पत्तियाँ निकलती हुई दिखाई देती हैं। साधारणतः यह कमजोर, शाखायुक्त, रेंगनेवाला पौधा है। बाँस, मक्का तथा धान के पौधे भी घास ही हैं।