Abut/əˈbʌt/ Definition 1 of 2Pro Tip 1/3Physical Adjacency Use 'abut' to describe two objects directly touching each other, with no space between. The shed abuts the back fence. Pro Tip 2/3Common Boundaries 'Abut' often refers to shared property lines like walls or fences. The new extension abuts our neighbor’s wall. Pro Tip 3/3Spatial Relation The focus is on the spatial relation, not the quality or purpose of the objects. The garage abuts the house.