"advreur" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Dérivations en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en breton préfixés avec ad-",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Dérivé de breur (« frère »), avec le préfixe ad- (avec une mutation consonantique par adoucissement breur → vreur)."
  ],
  "forms": [
    {
      "form": "advreudeur",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "adcʼhoar",
      "source": "form line template 'équiv-pour'",
      "tags": [
        "feminine"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "adfamilh"
    },
    {
      "word": "adkerent"
    },
    {
      "word": "adtad"
    },
    {
      "word": "advab"
    },
    {
      "word": "advabadur"
    },
    {
      "word": "advabañ"
    },
    {
      "word": "advaber"
    },
    {
      "word": "advaberezh"
    },
    {
      "word": "advamm"
    },
    {
      "word": "advercʼh"
    },
    {
      "word": "advercʼhañ"
    },
    {
      "word": "advugel"
    },
    {
      "word": "advugelañ"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en breton de la famille",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Frère d’adoption."
      ],
      "id": "fr-advreur-br-noun-OtNyLqTZ",
      "raw_tags": [
        "Famille"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈad.vrør\\"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "advreur"
}

{
  "categories": [
    "Dérivations en breton",
    "Mots en breton préfixés avec ad-",
    "Noms communs en breton",
    "breton"
  ],
  "etymology_texts": [
    "Dérivé de breur (« frère »), avec le préfixe ad- (avec une mutation consonantique par adoucissement breur → vreur)."
  ],
  "forms": [
    {
      "form": "advreudeur",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "adcʼhoar",
      "source": "form line template 'équiv-pour'",
      "tags": [
        "feminine"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "adfamilh"
    },
    {
      "word": "adkerent"
    },
    {
      "word": "adtad"
    },
    {
      "word": "advab"
    },
    {
      "word": "advabadur"
    },
    {
      "word": "advabañ"
    },
    {
      "word": "advaber"
    },
    {
      "word": "advaberezh"
    },
    {
      "word": "advamm"
    },
    {
      "word": "advercʼh"
    },
    {
      "word": "advercʼhañ"
    },
    {
      "word": "advugel"
    },
    {
      "word": "advugelañ"
    }
  ],
  "senses": [
    {
      "categories": [
        "Lexique en breton de la famille"
      ],
      "glosses": [
        "Frère d’adoption."
      ],
      "raw_tags": [
        "Famille"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈad.vrør\\"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "advreur"
}