"vein" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "maen",
      "tags": [
        "singular",
        "unmutated"
      ]
    },
    {
      "form": "mein",
      "tags": [
        "plural",
        "unmutated"
      ]
    },
    {
      "form": "vaen",
      "tags": [
        "singular",
        "mutation-soft"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en breton",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Jules Gros, Le Trésor du Breton parlé - Troisième partie - Le style populaire, 1974, page 381",
          "text": "Marcʼh Amon a ya da Vrest,\nDishual ha digabestr,\nDre an drez ha dre ar vein\nHag Ifig bihan war e gein.",
          "translation": "Le cheval dʼAymon va à Brest.\nsans entrave et sans bride,\nà travers les ronces et les pierres,\net petit Yves sur son dos."
        }
      ],
      "form_of": [
        {
          "word": "mein"
        }
      ],
      "glosses": [
        "Forme mutée de mein par adoucissement (m > v)."
      ],
      "id": "fr-vein-br-noun-rp8EjuVk"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈvɛjn\\"
    }
  ],
  "tags": [
    "form-of",
    "masculine",
    "plural"
  ],
  "word": "vein"
}

{
  "categories": [
    "Formes de noms communs en breton",
    "breton"
  ],
  "forms": [
    {
      "form": "maen",
      "tags": [
        "singular",
        "unmutated"
      ]
    },
    {
      "form": "mein",
      "tags": [
        "plural",
        "unmutated"
      ]
    },
    {
      "form": "vaen",
      "tags": [
        "singular",
        "mutation-soft"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en breton"
      ],
      "examples": [
        {
          "ref": "Jules Gros, Le Trésor du Breton parlé - Troisième partie - Le style populaire, 1974, page 381",
          "text": "Marcʼh Amon a ya da Vrest,\nDishual ha digabestr,\nDre an drez ha dre ar vein\nHag Ifig bihan war e gein.",
          "translation": "Le cheval dʼAymon va à Brest.\nsans entrave et sans bride,\nà travers les ronces et les pierres,\net petit Yves sur son dos."
        }
      ],
      "form_of": [
        {
          "word": "mein"
        }
      ],
      "glosses": [
        "Forme mutée de mein par adoucissement (m > v)."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈvɛjn\\"
    }
  ],
  "tags": [
    "form-of",
    "masculine",
    "plural"
  ],
  "word": "vein"
}