Home › Words › S › subterranesubterranesubterrane · adj — synonym of subterranean.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, subterrane ranks #1,243 of 42,862 for Qualifying.EtymologyFrom Latin subterrāneus. Doublet of subterraneous.adjSynonym of subterranean.nounA cave or underground room.e.g.“While these awful scenes were being enacted in the subterranes of the holy inquisition […]” — 1857, George W.M. Reynolds, Wagner, The Wehr-Wolf, London: John Dicks:Definitions & examples from Wiktionary (CC BY-SA 3.0).