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noun earth·work \ˈərth-ˌwərk\

Simple Definition of earthwork

  • : a raised bank or wall made of soil

Source: Merriam-Webster's Learner's Dictionary

Full Definition of earthwork

  1. 1 :  an embankment or other construction made of earth; especially :  one used as a field fortification

  2. 2 :  the operations connected with excavations and embankments of earth

  3. 3 :  a work of art consisting of a portion of land modified by an artist

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