"regnal year" meaning in English

{
  "forms": [
    {
      "form": "regnal years",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "regnal year (plural regnal years)",
      "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": [
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          "kind": "other",
          "name": "Mandarin terms with redundant transliterations",
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Law",
          "orig": "en:Law",
          "parents": [
            "Justice",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Monarchy",
          "orig": "en:Monarchy",
          "parents": [
            "Forms of government",
            "High society",
            "Government",
            "Society",
            "Politics",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Time",
          "orig": "en:Time",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A year in the reign of a monarch, beginning on the day of accession, the set of which are numbered ordinally. Formerly laws in the United Kingdom were identified in part by the regnal year of the monarch, and this practice is still followed in some Commonwealth countries."
      ],
      "id": "en-regnal_year-en-noun-GLq-PI6M",
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "ordinally",
          "ordinally"
        ]
      ],
      "raw_glosses": [
        "(law) A year in the reign of a monarch, beginning on the day of accession, the set of which are numbered ordinally. Formerly laws in the United Kingdom were identified in part by the regnal year of the monarch, and this practice is still followed in some Commonwealth countries."
      ],
      "topics": [
        "law"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "year in the reign of a monarch",
          "word": "帝曆"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "dìlì",
          "sense": "year in the reign of a monarch",
          "word": "帝历"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "year in the reign of a monarch",
          "word": "hallitusvuosi"
        }
      ],
      "wikipedia": [
        "Regnal year"
      ]
    }
  ],
  "word": "regnal year"
}

{
  "forms": [
    {
      "form": "regnal years",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "regnal year (plural regnal years)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "Mandarin terms with redundant transliterations",
        "en:Law",
        "en:Monarchy",
        "en:Time"
      ],
      "glosses": [
        "A year in the reign of a monarch, beginning on the day of accession, the set of which are numbered ordinally. Formerly laws in the United Kingdom were identified in part by the regnal year of the monarch, and this practice is still followed in some Commonwealth countries."
      ],
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "ordinally",
          "ordinally"
        ]
      ],
      "raw_glosses": [
        "(law) A year in the reign of a monarch, beginning on the day of accession, the set of which are numbered ordinally. Formerly laws in the United Kingdom were identified in part by the regnal year of the monarch, and this practice is still followed in some Commonwealth countries."
      ],
      "topics": [
        "law"
      ],
      "wikipedia": [
        "Regnal year"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "year in the reign of a monarch",
      "word": "帝曆"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "dìlì",
      "sense": "year in the reign of a monarch",
      "word": "帝历"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "year in the reign of a monarch",
      "word": "hallitusvuosi"
    }
  ],
  "word": "regnal year"
}