"fir" meaning in Gaélico escocés

{
  "categories": [
    {
      "kind": "other",
      "name": "Gaélico escocés",
      "parents": [],
      "source": "w"
    }
  ],
  "extra_sounds": {
    "pronunciación": "falta agregar"
  },
  "lang": "Gaélico escocés",
  "lang_code": "gd",
  "pos": "noun",
  "pos_title": "forma sustantiva",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "GD:Formas sustantivas en genitivo",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "GD:Formas sustantivas en singular",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "fear"
        }
      ],
      "glosses": [
        "Forma del genitivo singular de fear"
      ],
      "id": "es-fir-gd-noun-xkTjN7bP",
      "sense_index": "1"
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "GD:Formas sustantivas en plural",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "fear"
        }
      ],
      "glosses": [
        "Forma del plural de fear"
      ],
      "id": "es-fir-gd-noun-g5GCl9kY",
      "sense_index": "2"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "fir"
}

{
  "categories": [
    "Gaélico escocés"
  ],
  "extra_sounds": {
    "pronunciación": "falta agregar"
  },
  "lang": "Gaélico escocés",
  "lang_code": "gd",
  "pos": "noun",
  "pos_title": "forma sustantiva",
  "senses": [
    {
      "categories": [
        "GD:Formas sustantivas en genitivo",
        "GD:Formas sustantivas en singular"
      ],
      "form_of": [
        {
          "word": "fear"
        }
      ],
      "glosses": [
        "Forma del genitivo singular de fear"
      ],
      "sense_index": "1"
    },
    {
      "categories": [
        "GD:Formas sustantivas en plural"
      ],
      "form_of": [
        {
          "word": "fear"
        }
      ],
      "glosses": [
        "Forma del plural de fear"
      ],
      "sense_index": "2"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "fir"
}