earthworks

IPA/ˈɜːθ.wɜːk/
IPA/ˈɝːθ.wɝrk/

earthworks — noun

  • earthworkssingular
  • earthworksesplural

1. walls or banks made of packed earth, built in the past to defend a fort, town, o

1.nounB2
Definition

walls or banks made of packed earth, built in the past to defend a fort, town, or military camp from attack

Example

Tourists walked along the ancient earthworks that once guarded the hilltop fort.

collocation: ancient earthworks

Daniel followed the guide along the grassy earthworks surrounding the old castle.

Common collocations
  • ancient earthworks
  • defensive earthworks
  • prehistoric earthworks
  • build earthworks
  • construct earthworks
Synonyms
  • rampart

    often made of stone rather than earth; more formal

  • embankment

    broader term; includes modern roadsides and flood defences, not only military

  • fortification

    wider category that includes walls, towers, ditches, and other defensive structures

Usage Note

Almost always used in the plural form. The singular 'earthwork' is rare and mostly appears in technical or archaeological writing.

Common Mistakes

The army built an earthwork around the camp.
The army built earthworks around the camp.
the plural form is standard when referring to the defensive mounds themselves.

Word family

  • earthwork
    nounC1
  • earth
    nounA2
  • earthen
    adjectiveB2
  • earthy
    adjectiveB2

Synonym discussion

Sense: noun/1

Earthworks are specifically built from packed earth and soil, unlike ramparts, which are often made of stone and form part of a castle or city wall. An embankment is a raised bank of earth but is not necessarily defensive — it can support a road or hold back water. Fortification is the broadest term, covering any defensive structure including walls, towers, and ditches. A bulwark is a strong defensive wall, usually part of a fortification, and carries a more literary feel. If you visit an Iron Age hillfort and see grassy mounds around the edge, those are earthworks; the stone walls of a medieval castle are ramparts.

rampart ↗embankment ↗fortification ↗bulwark ↗

Common collocations

Nouns

  • earthworks and ditches
  • earthworks and ramparts

Phrases

  • remains of earthworks
  • earthworks dating from

Prepositions

  • along the earthworks
  • behind the earthworks
  • on top of the earthworks

Etymology

Old EnglishMiddle EnglishEnglish

From the Old English words eorthe ('earth, soil') and weorc ('work, construction'). The combined term originally referred to any construction made of earth, but by the 1600s it had narrowed to mean defensive mounds and banks used in military fortifications. Archaeological sites across Europe and Asia still preserve earthworks built thousands of years ago.

First known use

1633

1633, in the meaning defined at sense 1