Definition of lawn noun from the Oxford Advanced American Dictionary

lawn

noun
/lɔn/
 
 
1 [countable] an area of ground covered in short grass in a yard or parkIn summer we have to mow the lawn twice a week.The auction was held on the library lawn (= a large area of grass, near a big building, for example).2 [uncountable] a type of fine cotton or linen cloth used for making clothes