Overground/ˈəʊvərɡraʊnd/ Definition 1 of 1Pro Tip 1/3Transport Preference Expresses preference for transportation not underground. Tourists often enjoy the scenic views of the overground rails. Pro Tip 2/3Not Subterranean Highlights the contrast with subterranean or underground spaces. Plants typically need overground exposure to thrive. Pro Tip 3/3Visibility Aspect Emphasizes visibility and accessibility from the ground's surface. The overground pool is easier to maintain than a buried one.