"Great Turk" meaning in English

{
  "forms": [
    {
      "form": "Great Turks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Great Turk"
      },
      "expansion": "Great Turk (plural Great Turks)",
      "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"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1603, John Florio, trans. Michel de Montaigne, Essyas, I.48",
          "text": "The great Turke [translating grand Seigneur] doth not permit at this day any Christian or Jew, to have or keep any horse for himselfe, throughout all his large Empire."
        }
      ],
      "glosses": [
        "The Ottoman sultan."
      ],
      "id": "en-Great_Turk-en-noun-QQZwD3~a",
      "links": [
        [
          "Ottoman",
          "Ottoman"
        ],
        [
          "sultan",
          "sultan"
        ]
      ],
      "raw_glosses": [
        "(historical) The Ottoman sultan."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "Great Turk"
}

{
  "forms": [
    {
      "form": "Great Turks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "Great Turk"
      },
      "expansion": "Great Turk (plural Great Turks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with historical senses",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1603, John Florio, trans. Michel de Montaigne, Essyas, I.48",
          "text": "The great Turke [translating grand Seigneur] doth not permit at this day any Christian or Jew, to have or keep any horse for himselfe, throughout all his large Empire."
        }
      ],
      "glosses": [
        "The Ottoman sultan."
      ],
      "links": [
        [
          "Ottoman",
          "Ottoman"
        ],
        [
          "sultan",
          "sultan"
        ]
      ],
      "raw_glosses": [
        "(historical) The Ottoman sultan."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "Great Turk"
}