Term: cistern: an artificial reservoir for storing liquids; especially an underground tank for storing rainwater
Broader: pool: an excavation that is (usually) filled with water | Unrelated: knightia: small genus of trees or shrubs of New Zealand and New Caledonia
Broader: pool: an excavation that is (usually) filled with water | Unrelated: oil tanker: a cargo ship designed to carry crude oil in bulk
Broader: pool: an excavation that is (usually) filled with water | Unrelated: syneresis: the contraction of two vowels into a diphthong
Broader: pool: an excavation that is (usually) filled with water | Unrelated: marmalade bush: evergreen South American shrub having showy trumpet-shaped orange flowers; grown as an ornamental or houseplant
Broader: pool: an excavation that is (usually) filled with water | Unrelated: buck fever: nervous excitement of an inexperienced hunter
Broader: pool: an excavation that is (usually) filled with water | Unrelated: type genus: (biology) genus from which the name of a family or subfamily is formed; it is not necessarily the most representative genus but often the largest or best known or earliest described
Broader: pool: an excavation that is (usually) filled with water | Unrelated: exocet: a guided missile developed by the French government for use against ships
Broader: pool: an excavation that is (usually) filled with water | Unrelated: surcoat: a tunic worn over a knight's armor
Broader: pool: an excavation that is (usually) filled with water | Unrelated: railroad track: a line of track providing a runway for wheels
Broader: pool: an excavation that is (usually) filled with water | Unrelated: crypt: a cellar or vault or underground burial chamber (especially beneath a church)