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English definition of “subterranean”


adjective     /ˌsʌb.tərˈeɪ.ni.ən/ US  /-təˈreɪ-/
under the ground: subterranean passages a subterranean riverThe Earth and outer space - general words
(Definition of subterranean adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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