"J. C." meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Abréviations en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms propres en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "apr. J. C."
    },
    {
      "word": "av. J. C."
    }
  ],
  "etymology_texts": [
    "(Abréviation) Par abréviation."
  ],
  "forms": [
    {
      "form": "J.-C."
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en français de la religion",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Abbé Berthaud, Le Quadrille des enfans ou sistème nouveau de lecture, Henri Vincent, Lausanne, 1793 (10ᵉ édition",
          "text": "Table des abréviations\n[…]\nJ. C. Jésus Christ\nL. M. Leurs Majestés, en parlant du Roi & de la Reine"
        }
      ],
      "glosses": [
        "Jésus-Christ."
      ],
      "id": "fr-J._C.-fr-name-0qwDb0e-",
      "topics": [
        "religion"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ʒe.zy.kʁi(st)\\"
    }
  ],
  "tags": [
    "masculine",
    "singular"
  ],
  "word": "J. C."
}

{
  "categories": [
    "Abréviations en français",
    "Noms propres en français",
    "français"
  ],
  "derived": [
    {
      "word": "apr. J. C."
    },
    {
      "word": "av. J. C."
    }
  ],
  "etymology_texts": [
    "(Abréviation) Par abréviation."
  ],
  "forms": [
    {
      "form": "J.-C."
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        "Lexique en français de la religion"
      ],
      "examples": [
        {
          "ref": "Abbé Berthaud, Le Quadrille des enfans ou sistème nouveau de lecture, Henri Vincent, Lausanne, 1793 (10ᵉ édition",
          "text": "Table des abréviations\n[…]\nJ. C. Jésus Christ\nL. M. Leurs Majestés, en parlant du Roi & de la Reine"
        }
      ],
      "glosses": [
        "Jésus-Christ."
      ],
      "topics": [
        "religion"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ʒe.zy.kʁi(st)\\"
    }
  ],
  "tags": [
    "masculine",
    "singular"
  ],
  "word": "J. C."
}