subterrane noun 1adjective 1forms 1 noun1 •A cave or underground room.While these awful scenes were being enacted in the subterranes of the holy inquisition […] — 1857 adjective1 •Synonym of subterranean.By this secret subterrane vault, Zedechias making his stealth, recouered (by the helpe of the darke night) the plaines or deserts of Iericho: […] — 1614 formssubterranes
