underground
A2UK /ˌʌndəˈɡraʊnd/US /ˌʌndərˈɡraʊnd/
Meaning
adjective
under the surface of the ground
“an underground bunker/tunnel”
adverb
under the surface of the ground
“Rescuers found victims trapped several feet underground.”
Real video examples
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“I was given the job of escorting him back to the underground station afterwards.”
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“started a non-profit venture which we called linking data to design we call it Gapminder from London Underground where they warn you mind the gap so we thought gap mind was appropriate”
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