Definition of overground in English:

overground

adjective & adverb

  • 1On or above the ground.

    [as adverb] ‘subway lines that go overground’
    [as attributive adjective] ‘a heating system pipes heat along overground tubes’
    1. 1.1[as attributive adjective]Legitimate; not underground.
      ‘overground political processes’

Pronunciation:

overground

/ˈōvərˌɡround/