Subterranean+passage
61Pools of Solomon — The name given to three large open cisterns at Etam, at the head of the Wady Urtas, having an average length of 400 feet by 220 in breadth, and 20 to 30 in depth. These pools derive their chief supply of water from a spring called the sealed… …
62cave-in — 1. The collapse of the ceiling or side walls of a cave or of the land surface into a subterranean passage as a result of undermining or of pressure from above [10]. 2. The partial or complete collapse of earth material into a large… …
63cul-de-sac — , dead end A subterranean passage having only one entry [10] …
64Dumfries — DUMFRIES, a royal burgh, county town, port, and the seat of a presbytery and synod, in the county of Dumfries; comprising the parishes of St. Michael and New Church, with the villages of Georgetown, Locharbriggs, Lochthorn, and part of Kelton; …
65mine — mine1 possessive pronoun referring to a thing or things belonging to or associated with the speaker. possessive determiner archaic (used before a vowel) my. Origin OE mīn, of Gmc origin; related to me1. mine2 noun 1》 an excavation in the earth… …
66tunnel — n. 1. Funnel. 2. Subterranean passage, underground thoroughfare …
67tunnel — n 1. underground, underground passageway, subterranean passage, Mil. mine; underpass, Chiefly Brit. subway, C.B. Radio. hole in the wall. 2.(all of mines) gallery, corridor, Mining. drift, Mining. crosscut. 3.(both of animals) burrow, hole. v… …
68grotto — grot•to [[t]ˈgrɒt oʊ[/t]] n. pl. toes, tos 1) a cave or cavern 2) an artificial cavernlike recess or structure • Etymology: 1610–20; < It grotta « L crypta subterranean passage, chamber. See crypt grot′toed, adj …
69grotto — /ˈgrɒtoʊ / (say grotoh) noun (plural grottoes or grottos) 1. a cave or cavern. 2. an artificial cavern like recess or structure. {Italian grotta, from Vulgar Latin crupta, in Latin crypta subterranean passage or chamber, crypt, from Greek kryptē… …
70sinkhole — noun a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof • Syn: ↑sink, ↑swallow hole • Hypernyms: ↑natural depression, ↑depression …
