"megaduke" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "gkm",
        "3": "μέγας δούξ",
        "lit": "great leader"
      },
      "expansion": "Byzantine Greek μέγας δούξ (mégas doúx, literally “great leader”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "mega-",
        "3": "duke"
      },
      "expansion": "By surface analysis, mega- + duke",
      "name": "surf"
    }
  ],
  "etymology_text": "From Byzantine Greek μέγας δούξ (mégas doúx, literally “great leader”). By surface analysis, mega- + duke.",
  "forms": [
    {
      "form": "megadukes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megaduke (plural megadukes)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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          "kind": "other",
          "name": "English terms prefixed with mega-",
          "parents": [],
          "source": "w"
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          "kind": "topical",
          "langcode": "en",
          "name": "Byzantine Empire",
          "orig": "en:Byzantine Empire",
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        },
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          "langcode": "en",
          "name": "Military",
          "orig": "en:Military",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Military ranks",
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          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1968, Alan Lloyd, The Spanish Centuries, page 56",
          "text": "Roger de Flor was given the title of megaduke and the King of Bulgaria's daughter as his wife.",
          "type": "quotation"
        },
        {
          "ref": "1979, Jean Richard, translated by Janet Shirley, The Latin Kingdom of Jerusalem, volume 1, page 50",
          "text": "In September 1169 the Byzantine admiral, the megaduke Andronicus Contostephanus, arrived in Tyre […]",
          "type": "quotation"
        },
        {
          "ref": "1987, John V. A. Fine, Jr., The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest, page 35",
          "text": "After Manuel's death, the actual number of ships and sailors under the megaduke had declined significantly, and the sailors tended to consist of unreliable foreigners.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The commander in chief of the Byzantine navy."
      ],
      "id": "en-megaduke-en-noun-7ZOPtdCJ",
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          "commander in chief",
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        ],
        [
          "navy",
          "navy"
        ]
      ],
      "raw_glosses": [
        "(historical, military) The commander in chief of the Byzantine navy."
      ],
      "tags": [
        "historical"
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "megaduke"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "gkm",
        "3": "μέγας δούξ",
        "lit": "great leader"
      },
      "expansion": "Byzantine Greek μέγας δούξ (mégas doúx, literally “great leader”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "mega-",
        "3": "duke"
      },
      "expansion": "By surface analysis, mega- + duke",
      "name": "surf"
    }
  ],
  "etymology_text": "From Byzantine Greek μέγας δούξ (mégas doúx, literally “great leader”). By surface analysis, mega- + duke.",
  "forms": [
    {
      "form": "megadukes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megaduke (plural megadukes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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    {
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        "English entries with incorrect language header",
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        "en:Military ranks"
      ],
      "examples": [
        {
          "ref": "1968, Alan Lloyd, The Spanish Centuries, page 56",
          "text": "Roger de Flor was given the title of megaduke and the King of Bulgaria's daughter as his wife.",
          "type": "quotation"
        },
        {
          "ref": "1979, Jean Richard, translated by Janet Shirley, The Latin Kingdom of Jerusalem, volume 1, page 50",
          "text": "In September 1169 the Byzantine admiral, the megaduke Andronicus Contostephanus, arrived in Tyre […]",
          "type": "quotation"
        },
        {
          "ref": "1987, John V. A. Fine, Jr., The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest, page 35",
          "text": "After Manuel's death, the actual number of ships and sailors under the megaduke had declined significantly, and the sailors tended to consist of unreliable foreigners.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The commander in chief of the Byzantine navy."
      ],
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        [
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          "military"
        ],
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          "commander in chief",
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        ],
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        ],
        [
          "navy",
          "navy"
        ]
      ],
      "raw_glosses": [
        "(historical, military) The commander in chief of the Byzantine navy."
      ],
      "tags": [
        "historical"
      ],
      "topics": [
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "word": "megaduke"
}