"dùn" meaning in Scottish Gaelic

{
  "etymology_templates": [
    {
      "args": {
        "1": "gd",
        "2": "sga",
        "3": "dún",
        "4": "",
        "5": "fort, fortress"
      },
      "expansion": "Old Irish dún (“fort, fortress”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "gd",
        "2": "cel-pro",
        "3": "*dūnom",
        "4": "",
        "5": "stronghold"
      },
      "expansion": "Proto-Celtic *dūnom (“stronghold”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old Irish dún (“fort, fortress”), from Proto-Celtic *dūnom (“stronghold”).",
  "forms": [
    {
      "form": "dùin",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "gd",
        "2": "noun",
        "3": "plural",
        "4": "dùin",
        "g": "m"
      },
      "expansion": "dùn m (plural dùin)",
      "name": "head"
    }
  ],
  "lang": "Scottish Gaelic",
  "lang_code": "gd",
  "pos": "noun",
  "related": [
    {
      "_dis1": "0 0 0",
      "tags": [
        "masculine"
      ],
      "word": "caisteal"
    },
    {
      "_dis1": "0 0 0",
      "tags": [
        "feminine"
      ],
      "word": "daingneach"
    },
    {
      "_dis1": "0 0 0",
      "word": "Dùn Èideann"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "_dis": "53 24 23",
          "kind": "other",
          "name": "Scottish Gaelic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "heap, mould"
      ],
      "id": "en-dùn-gd-noun-gwNrW-nc",
      "links": [
        [
          "heap",
          "heap"
        ],
        [
          "mould",
          "mould"
        ]
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "glosses": [
        "fort, fortress, castle"
      ],
      "id": "en-dùn-gd-noun-eBXhptKw",
      "links": [
        [
          "fort",
          "fort"
        ],
        [
          "fortress",
          "fortress"
        ],
        [
          "castle",
          "castle"
        ]
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "glosses": [
        "town"
      ],
      "id": "en-dùn-gd-noun-UKyB-XAy",
      "links": [
        [
          "town",
          "town"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/t̪uːn/"
    }
  ],
  "word": "dùn"
}

{
  "categories": [
    "Pages with 2 entries",
    "Pages with entries",
    "Scottish Gaelic entries with incorrect language header",
    "Scottish Gaelic lemmas",
    "Scottish Gaelic masculine nouns",
    "Scottish Gaelic nouns",
    "Scottish Gaelic terms derived from Old Irish",
    "Scottish Gaelic terms derived from Proto-Celtic",
    "Scottish Gaelic terms inherited from Old Irish",
    "Scottish Gaelic terms inherited from Proto-Celtic"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "gd",
        "2": "sga",
        "3": "dún",
        "4": "",
        "5": "fort, fortress"
      },
      "expansion": "Old Irish dún (“fort, fortress”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "gd",
        "2": "cel-pro",
        "3": "*dūnom",
        "4": "",
        "5": "stronghold"
      },
      "expansion": "Proto-Celtic *dūnom (“stronghold”)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old Irish dún (“fort, fortress”), from Proto-Celtic *dūnom (“stronghold”).",
  "forms": [
    {
      "form": "dùin",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "gd",
        "2": "noun",
        "3": "plural",
        "4": "dùin",
        "g": "m"
      },
      "expansion": "dùn m (plural dùin)",
      "name": "head"
    }
  ],
  "lang": "Scottish Gaelic",
  "lang_code": "gd",
  "pos": "noun",
  "related": [
    {
      "tags": [
        "masculine"
      ],
      "word": "caisteal"
    },
    {
      "tags": [
        "feminine"
      ],
      "word": "daingneach"
    },
    {
      "word": "Dùn Èideann"
    }
  ],
  "senses": [
    {
      "glosses": [
        "heap, mould"
      ],
      "links": [
        [
          "heap",
          "heap"
        ],
        [
          "mould",
          "mould"
        ]
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "glosses": [
        "fort, fortress, castle"
      ],
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        [
          "fort",
          "fort"
        ],
        [
          "fortress",
          "fortress"
        ],
        [
          "castle",
          "castle"
        ]
      ],
      "tags": [
        "masculine"
      ]
    },
    {
      "glosses": [
        "town"
      ],
      "links": [
        [
          "town",
          "town"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/t̪uːn/"
    }
  ],
  "word": "dùn"
}