"lanneier" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en breton suffixés avec -eier",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "Sant-Suleg-al-Lanneier"
    }
  ],
  "forms": [
    {
      "form": "lann",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "lannoù",
      "tags": [
        "plural"
      ]
    }
  ],
  "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": "Yann ar Flocʼh, Koñchennou eus Bro ar Ster Aon, Kemper, 1950, page 39",
          "text": "E voue, gant an avel, a lamme war vrug al lanneier, […].",
          "translation": "Sa crinière, avec le vent, sautait sur la bruyère de la lande, […]."
        }
      ],
      "form_of": [
        {
          "word": "lann"
        }
      ],
      "glosses": [
        "Pluriel de lann."
      ],
      "id": "fr-lanneier-br-noun-NZsv-83L"
    }
  ],
  "sounds": [
    {
      "ipa": "\\lã.ˈnɛ.jːɛr\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of"
  ],
  "word": "lanneier"
}

{
  "categories": [
    "Formes de noms communs en breton",
    "Mots en breton suffixés avec -eier",
    "breton"
  ],
  "derived": [
    {
      "word": "Sant-Suleg-al-Lanneier"
    }
  ],
  "forms": [
    {
      "form": "lann",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "lannoù",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "categories": [
        "Exemples en breton"
      ],
      "examples": [
        {
          "ref": "Yann ar Flocʼh, Koñchennou eus Bro ar Ster Aon, Kemper, 1950, page 39",
          "text": "E voue, gant an avel, a lamme war vrug al lanneier, […].",
          "translation": "Sa crinière, avec le vent, sautait sur la bruyère de la lande, […]."
        }
      ],
      "form_of": [
        {
          "word": "lann"
        }
      ],
      "glosses": [
        "Pluriel de lann."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\lã.ˈnɛ.jːɛr\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of"
  ],
  "word": "lanneier"
}