"da" meaning in Conventions internationales

{
  "categories": [
    {
      "kind": "other",
      "name": "Symboles en conventions internationales",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Conventions internationales",
      "orig": "conventions internationales",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole 1",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en conventions internationales de la métrologie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Symbole du préfixe déca- du Système international, dont la valeur est 10¹."
      ],
      "id": "fr-da-conv-symbol-c6nnFps~",
      "topics": [
        "metrology"
      ]
    }
  ],
  "word": "da"
}

{
  "categories": [
    {
      "kind": "other",
      "name": "Symboles en conventions internationales",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Conventions internationales",
      "orig": "conventions internationales",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole 2",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en conventions internationales de la métrologie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Symbole du déciare, unité de surface en dehors du Système international (mais dont l’usage est accepté avec celui-ci), valant 10⁻¹ are."
      ],
      "id": "fr-da-conv-symbol-iLLxSRbu",
      "topics": [
        "metrology"
      ]
    }
  ],
  "word": "da"
}

{
  "categories": [
    {
      "kind": "other",
      "name": "Symboles en conventions internationales",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Conventions internationales",
      "orig": "conventions internationales",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole 3",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en conventions internationales de la linguistique",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Code ISO 639-1 (alpha-2) du danois."
      ],
      "id": "fr-da-conv-symbol-PFq8Owl7",
      "topics": [
        "linguistic"
      ]
    }
  ],
  "word": "da"
}

{
  "categories": [
    "Symboles en conventions internationales",
    "conventions internationales"
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole 1",
  "senses": [
    {
      "categories": [
        "Lexique en conventions internationales de la métrologie"
      ],
      "glosses": [
        "Symbole du préfixe déca- du Système international, dont la valeur est 10¹."
      ],
      "topics": [
        "metrology"
      ]
    }
  ],
  "word": "da"
}

{
  "categories": [
    "Symboles en conventions internationales",
    "conventions internationales"
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole 2",
  "senses": [
    {
      "categories": [
        "Lexique en conventions internationales de la métrologie"
      ],
      "glosses": [
        "Symbole du déciare, unité de surface en dehors du Système international (mais dont l’usage est accepté avec celui-ci), valant 10⁻¹ are."
      ],
      "topics": [
        "metrology"
      ]
    }
  ],
  "word": "da"
}

{
  "categories": [
    "Symboles en conventions internationales",
    "conventions internationales"
  ],
  "lang": "Conventions internationales",
  "lang_code": "conv",
  "pos": "symbol",
  "pos_title": "Symbole 3",
  "senses": [
    {
      "categories": [
        "Lexique en conventions internationales de la linguistique"
      ],
      "glosses": [
        "Code ISO 639-1 (alpha-2) du danois."
      ],
      "topics": [
        "linguistic"
      ]
    }
  ],
  "word": "da"
}