"dhá fhichead" meaning in Irish

{
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "numeral"
      },
      "expansion": "dhá fhichead",
      "name": "head"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "name": "Irish cardinal numbers",
          "parents": [
            "Cardinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Irish links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ga",
          "name": "Forty",
          "orig": "ga:Forty",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "forty"
      ],
      "id": "en-dhá_fhichead-ga-num-nO4jBL1j",
      "links": [
        [
          "forty",
          "forty"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɣɑː.iːd̪ˠ/",
      "tags": [
        "Cois-Fharraige"
      ]
    }
  ],
  "word": "dhá fhichead"
}

{
  "head_templates": [
    {
      "args": {
        "1": "ga",
        "2": "numeral"
      },
      "expansion": "dhá fhichead",
      "name": "head"
    }
  ],
  "lang": "Irish",
  "lang_code": "ga",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Irish cardinal numbers",
        "Irish entries with incorrect language header",
        "Irish lemmas",
        "Irish links with redundant alt parameters",
        "Irish multiword terms",
        "Irish numerals",
        "Pages with 1 entry",
        "Pages with entries",
        "ga:Forty"
      ],
      "glosses": [
        "forty"
      ],
      "links": [
        [
          "forty",
          "forty"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈɣɑː.iːd̪ˠ/",
      "tags": [
        "Cois-Fharraige"
      ]
    }
  ],
  "word": "dhá fhichead"
}