"castañal" meaning in Galician

{
  "forms": [
    {
      "form": "castañais",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "castañal m (plural castañais)",
      "name": "gl-noun"
    }
  ],
  "hyphenation": [
    "cas‧ta‧ñal"
  ],
  "lang": "Galician",
  "lang_code": "gl",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Galician entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "chestnut grove"
      ],
      "id": "en-castañal-gl-noun-58PrKx26",
      "links": [
        [
          "chestnut",
          "chestnut"
        ]
      ],
      "related": [
        {
          "word": "castiñeiro"
        }
      ],
      "synonyms": [
        {
          "english": "reintegrationist",
          "word": "castanhal"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kastaˈɲal/"
    },
    {
      "ipa": "[kɑs̺.t̪aˈɲɑɫ]"
    },
    {
      "rhymes": "-al"
    }
  ],
  "word": "castañal"
}

{
  "forms": [
    {
      "form": "castañais",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "castañal m (plural castañais)",
      "name": "gl-noun"
    }
  ],
  "hyphenation": [
    "cas‧ta‧ñal"
  ],
  "lang": "Galician",
  "lang_code": "gl",
  "pos": "noun",
  "related": [
    {
      "word": "castiñeiro"
    }
  ],
  "senses": [
    {
      "categories": [
        "Galician countable nouns",
        "Galician entries with incorrect language header",
        "Galician lemmas",
        "Galician masculine nouns",
        "Galician nouns",
        "Galician nouns with red links in their headword lines",
        "Galician terms with IPA pronunciation",
        "Pages with 2 entries",
        "Rhymes:Galician/al",
        "Rhymes:Galician/al/3 syllables"
      ],
      "glosses": [
        "chestnut grove"
      ],
      "links": [
        [
          "chestnut",
          "chestnut"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kastaˈɲal/"
    },
    {
      "ipa": "[kɑs̺.t̪aˈɲɑɫ]"
    },
    {
      "rhymes": "-al"
    }
  ],
  "synonyms": [
    {
      "english": "reintegrationist",
      "word": "castanhal"
    }
  ],
  "word": "castañal"
}