"empress regnant" meaning in English

{
  "forms": [
    {
      "form": "empresses regnant",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "empresses regnant"
      },
      "expansion": "empress regnant (plural empresses regnant)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "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": [
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          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
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        }
      ],
      "glosses": [
        "a female monarch who reigns in her own right over an empire, in contrast to an empress consort, who is the wife of a reigning emperor."
      ],
      "id": "en-empress_regnant-en-noun-4KSOr8yc",
      "links": [
        [
          "monarch",
          "monarch"
        ],
        [
          "reign",
          "reign"
        ]
      ],
      "related": [
        {
          "word": "queen regnant"
        }
      ],
      "wikipedia": [
        "empress regnant"
      ]
    }
  ],
  "word": "empress regnant"
}

{
  "forms": [
    {
      "form": "empresses regnant",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "empresses regnant"
      },
      "expansion": "empress regnant (plural empresses regnant)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "queen regnant"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms where the adjective follows the noun",
        "Pages with 1 entry",
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      ],
      "glosses": [
        "a female monarch who reigns in her own right over an empire, in contrast to an empress consort, who is the wife of a reigning emperor."
      ],
      "links": [
        [
          "monarch",
          "monarch"
        ],
        [
          "reign",
          "reign"
        ]
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      "wikipedia": [
        "empress regnant"
      ]
    }
  ],
  "word": "empress regnant"
}