"registrar-general" meaning in English

{
  "forms": [
    {
      "form": "registrars-general",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "registrars-general"
      },
      "expansion": "registrar-general (plural registrars-general)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Commonwealth English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms where the adjective follows the noun",
          "parents": [
            "Terms where the adjective follows the noun",
            "Terms by orthographic property",
            "Terms by lexical property"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The director of the General Register Office."
      ],
      "id": "en-registrar-general-en-noun-YYmvGEK~",
      "links": [
        [
          "director",
          "director"
        ],
        [
          "General Register Office",
          "register office"
        ]
      ],
      "raw_glosses": [
        "(Commonwealth) The director of the General Register Office."
      ],
      "tags": [
        "Commonwealth"
      ]
    }
  ],
  "word": "registrar-general"
}

{
  "forms": [
    {
      "form": "registrars-general",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "registrars-general"
      },
      "expansion": "registrar-general (plural registrars-general)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Commonwealth English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English nouns with irregular plurals",
        "English terms where the adjective follows the noun",
        "English terms with non-redundant non-automated sortkeys"
      ],
      "glosses": [
        "The director of the General Register Office."
      ],
      "links": [
        [
          "director",
          "director"
        ],
        [
          "General Register Office",
          "register office"
        ]
      ],
      "raw_glosses": [
        "(Commonwealth) The director of the General Register Office."
      ],
      "tags": [
        "Commonwealth"
      ]
    }
  ],
  "word": "registrar-general"
}