from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A wall built to support or prevent the advance of a mass of earth or water.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any of several structures used to restrain a vertical-faced mass of earth
from the GNU version of the Collaborative International Dictionary of English
- transitive v. a wall built to keep any movable backing, or a bank of sand or earth, in its place; -- called also retain wall.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a wall that is built to resist lateral pressure (especially a wall built to prevent the advance of a mass of earth)
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