"de un" meaning in French

{
  "head_templates": [
    {
      "args": {},
      "expansion": "de un",
      "name": "fr-adv"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "fr",
          "name": "One",
          "orig": "fr:One",
          "parents": [],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "de deux"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              0,
              5
            ]
          ],
          "bold_translation_offsets": [
            [
              0,
              9
            ]
          ],
          "english": "First off, your accusation is utterly baseless.",
          "text": "De un, votre accusation est sans aucun fondement.",
          "translation": "First off, your accusation is utterly baseless.",
          "type": "example"
        },
        {
          "bold_text_offsets": [
            [
              0,
              5
            ]
          ],
          "bold_translation_offsets": [
            [
              0,
              7
            ]
          ],
          "english": "For one, he surely liked kissing me the first time, as he did it again. And for two, he clearly said I would have my chance, in a few months.",
          "ref": "2018, Sabrina Gramage, Ne dis jamais « mon frère »:",
          "text": "De un, il a bien aimé m'embrasser la première fois, car il a recommencé. Et de deux, il a clairement dit que j'avais mes chances, dans quelques mois.",
          "translation": "For one, he surely liked kissing me the first time, as he did it again. And for two, he clearly said I would have my chance, in a few months.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "first, first up"
      ],
      "id": "en-de_un-fr-adv-ckTeDLJI",
      "links": [
        [
          "first",
          "first"
        ],
        [
          "first up",
          "first up"
        ]
      ],
      "raw_glosses": [
        "(informal) first, first up"
      ],
      "synonyms": [
        {
          "word": "premièrement"
        },
        {
          "word": "primo"
        },
        {
          "word": "déjà"
        }
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/də œ̃/"
    }
  ],
  "word": "de un"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "de un",
      "name": "fr-adv"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "French adverbs",
        "French entries with incorrect language header",
        "French informal terms",
        "French lemmas",
        "French multiword terms",
        "French terms with IPA pronunciation",
        "French terms with quotations",
        "French terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries",
        "fr:One"
      ],
      "coordinate_terms": [
        {
          "word": "de deux"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              0,
              5
            ]
          ],
          "bold_translation_offsets": [
            [
              0,
              9
            ]
          ],
          "english": "First off, your accusation is utterly baseless.",
          "text": "De un, votre accusation est sans aucun fondement.",
          "translation": "First off, your accusation is utterly baseless.",
          "type": "example"
        },
        {
          "bold_text_offsets": [
            [
              0,
              5
            ]
          ],
          "bold_translation_offsets": [
            [
              0,
              7
            ]
          ],
          "english": "For one, he surely liked kissing me the first time, as he did it again. And for two, he clearly said I would have my chance, in a few months.",
          "ref": "2018, Sabrina Gramage, Ne dis jamais « mon frère »:",
          "text": "De un, il a bien aimé m'embrasser la première fois, car il a recommencé. Et de deux, il a clairement dit que j'avais mes chances, dans quelques mois.",
          "translation": "For one, he surely liked kissing me the first time, as he did it again. And for two, he clearly said I would have my chance, in a few months.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "first, first up"
      ],
      "links": [
        [
          "first",
          "first"
        ],
        [
          "first up",
          "first up"
        ]
      ],
      "raw_glosses": [
        "(informal) first, first up"
      ],
      "synonyms": [
        {
          "word": "premièrement"
        },
        {
          "word": "primo"
        },
        {
          "word": "déjà"
        }
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/də œ̃/"
    }
  ],
  "word": "de un"
}