"hornwork" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "horn",
        "3": "work"
      },
      "expansion": "horn + work",
      "name": "compound"
    }
  ],
  "etymology_text": "From horn + work.",
  "forms": [
    {
      "form": "hornworks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hornwork (plural hornworks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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          "parents": [],
          "source": "w"
        },
        {
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      ],
      "glosses": [
        "A type of fortification consisting of a pair of demi-bastions with a curtain wall connecting them and with two long sides directed upon the faces of the bastions, or ravelins of the inner fortifications, so as to be defended by them."
      ],
      "id": "en-hornwork-en-noun-WbJwmKdT",
      "links": [
        [
          "fortification",
          "fortification"
        ],
        [
          "ravelin",
          "ravelin"
        ]
      ],
      "related": [
        {
          "word": "crownwork"
        }
      ],
      "wikipedia": [
        "hornwork"
      ]
    }
  ],
  "word": "hornwork"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "horn",
        "3": "work"
      },
      "expansion": "horn + work",
      "name": "compound"
    }
  ],
  "etymology_text": "From horn + work.",
  "forms": [
    {
      "form": "hornworks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hornwork (plural hornworks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "crownwork"
    }
  ],
  "senses": [
    {
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        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A type of fortification consisting of a pair of demi-bastions with a curtain wall connecting them and with two long sides directed upon the faces of the bastions, or ravelins of the inner fortifications, so as to be defended by them."
      ],
      "links": [
        [
          "fortification",
          "fortification"
        ],
        [
          "ravelin",
          "ravelin"
        ]
      ],
      "wikipedia": [
        "hornwork"
      ]
    }
  ],
  "word": "hornwork"
}