"regnum" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "rēgnum",
        "t": "kingdom"
      },
      "expansion": "Latin rēgnum (“kingdom”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "reign"
      },
      "expansion": "Doublet of reign",
      "name": "doublet"
    }
  ],
  "etymology_text": "From Latin rēgnum (“kingdom”). Doublet of reign.",
  "forms": [
    {
      "form": "regnums",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "regna",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "regna"
      },
      "expansion": "regnum (plural regnums or regna)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Biology",
          "orig": "en:Biology",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Taxonomy",
          "orig": "en:Taxonomy",
          "parents": [
            "Biology",
            "Evolutionary theory",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "88 12",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A rank in the classification of organisms, below dominium and above divisio."
      ],
      "id": "en-regnum-en-noun-N~1zeRw4",
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "taxonomy",
          "taxonomy"
        ],
        [
          "rank",
          "rank"
        ],
        [
          "organism",
          "organism"
        ],
        [
          "dominium",
          "dominium"
        ],
        [
          "divisio",
          "divisio"
        ]
      ],
      "raw_glosses": [
        "(biology, taxonomy) A rank in the classification of organisms, below dominium and above divisio."
      ],
      "synonyms": [
        {
          "word": "kingdom"
        }
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "taxonomy"
      ]
    },
    {
      "glosses": [
        "A badge of royalty, especially the early form of the pope's tiara."
      ],
      "id": "en-regnum-en-noun-cQaOURAv",
      "links": [
        [
          "badge",
          "badge"
        ],
        [
          "royalty",
          "royalty"
        ],
        [
          "pope",
          "pope"
        ],
        [
          "tiara",
          "tiara"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɹɛɡ.nəm/",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "regnum"
}

{
  "categories": [
    "English 2-syllable words",
    "English countable nouns",
    "English doublets",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English nouns with irregular plurals",
    "English terms borrowed from Latin",
    "English terms derived from Latin",
    "English terms with IPA pronunciation",
    "la:Government",
    "la:Monarchy"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "rēgnum",
        "t": "kingdom"
      },
      "expansion": "Latin rēgnum (“kingdom”)",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "reign"
      },
      "expansion": "Doublet of reign",
      "name": "doublet"
    }
  ],
  "etymology_text": "From Latin rēgnum (“kingdom”). Doublet of reign.",
  "forms": [
    {
      "form": "regnums",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "regna",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "regna"
      },
      "expansion": "regnum (plural regnums or regna)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Biology",
        "en:Taxonomy"
      ],
      "glosses": [
        "A rank in the classification of organisms, below dominium and above divisio."
      ],
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "taxonomy",
          "taxonomy"
        ],
        [
          "rank",
          "rank"
        ],
        [
          "organism",
          "organism"
        ],
        [
          "dominium",
          "dominium"
        ],
        [
          "divisio",
          "divisio"
        ]
      ],
      "raw_glosses": [
        "(biology, taxonomy) A rank in the classification of organisms, below dominium and above divisio."
      ],
      "synonyms": [
        {
          "word": "kingdom"
        }
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "taxonomy"
      ]
    },
    {
      "glosses": [
        "A badge of royalty, especially the early form of the pope's tiara."
      ],
      "links": [
        [
          "badge",
          "badge"
        ],
        [
          "royalty",
          "royalty"
        ],
        [
          "pope",
          "pope"
        ],
        [
          "tiara",
          "tiara"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɹɛɡ.nəm/",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "regnum"
}