overground
Word family noun ground underground grounding grounds adjective goundless underground ≠ overground grounded verb ground adverb underground
o·ver·ground /ˈəʊvəɡraʊnd $ ˈoʊvər-/ adjectiveadj [only before noun] used to describe a train system that runs on the surface of the ground rather than below it 〔铁路系统〕在地面上的,高出地面的 OPP underground an overground railway 地面铁路系统