"merci Dieu" meaning in Français

{
  "anagrams": [
    {
      "word": "Dieu merci"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions interjectives en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de merci et de Dieu."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "intj",
  "pos_title": "Locution interjective",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en français",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              65,
              75
            ]
          ],
          "ref": "Romain Rolland, Colas Breugnon, 1919",
          "text": "Ce qu’on voudra, ce qu’il faudra, je le ferai, — hors commander. Merci Dieu ! je n’ai jamais su rien décider…"
        }
      ],
      "glosses": [
        "Exprime le soulagement."
      ],
      "id": "fr-merci_Dieu-fr-intj-Iy0MNg8J"
    }
  ],
  "sounds": [
    {
      "ipa": "\\mɛʁ.si djø\\"
    }
  ],
  "synonyms": [
    {
      "word": "Dieu soit loué"
    },
    {
      "word": "Dieu merci"
    },
    {
      "word": "grâce à Dieu"
    }
  ],
  "word": "merci Dieu"
}

{
  "anagrams": [
    {
      "word": "Dieu merci"
    }
  ],
  "categories": [
    "Compositions en français",
    "Locutions interjectives en français",
    "français"
  ],
  "etymology_texts": [
    "Composé de merci et de Dieu."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "intj",
  "pos_title": "Locution interjective",
  "senses": [
    {
      "categories": [
        "Exemples en français"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              65,
              75
            ]
          ],
          "ref": "Romain Rolland, Colas Breugnon, 1919",
          "text": "Ce qu’on voudra, ce qu’il faudra, je le ferai, — hors commander. Merci Dieu ! je n’ai jamais su rien décider…"
        }
      ],
      "glosses": [
        "Exprime le soulagement."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\mɛʁ.si djø\\"
    }
  ],
  "synonyms": [
    {
      "word": "Dieu soit loué"
    },
    {
      "word": "Dieu merci"
    },
    {
      "word": "grâce à Dieu"
    }
  ],
  "word": "merci Dieu"
}