"のだ" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "野田"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "野原の中の田"
      ],
      "id": "ja-のだ-ja-noun-lbZi2B4I"
    }
  ],
  "word": "のだ"
}

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 助動詞",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "verb",
  "pos_title": "助動詞",
  "related": [
    {
      "word": "んだ"
    }
  ],
  "senses": [
    {
      "glosses": [
        "理由などを強調した断定の意"
      ],
      "id": "ja-のだ-ja-verb-BRfuYpJ5"
    },
    {
      "glosses": [
        "話し手の決意や要求などを表す"
      ],
      "id": "ja-のだ-ja-verb-SmQzdgAq"
    },
    {
      "glosses": [
        "事柄の様子などを強調して説明する"
      ],
      "id": "ja-のだ-ja-verb-Xo2mqZmb"
    },
    {
      "glosses": [
        "会話などでの疑問詞疑問文で、疑問の語気を表す"
      ],
      "id": "ja-のだ-ja-verb-KFclWkDW"
    }
  ],
  "tags": [
    "auxiliary"
  ],
  "word": "のだ"
}

{
  "categories": [
    "日本語",
    "日本語 名詞"
  ],
  "forms": [
    {
      "form": "野田"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "glosses": [
        "野原の中の田"
      ]
    }
  ],
  "word": "のだ"
}

{
  "categories": [
    "日本語",
    "日本語 助動詞"
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "verb",
  "pos_title": "助動詞",
  "related": [
    {
      "word": "んだ"
    }
  ],
  "senses": [
    {
      "glosses": [
        "理由などを強調した断定の意"
      ]
    },
    {
      "glosses": [
        "話し手の決意や要求などを表す"
      ]
    },
    {
      "glosses": [
        "事柄の様子などを強調して説明する"
      ]
    },
    {
      "glosses": [
        "会話などでの疑問詞疑問文で、疑問の語気を表す"
      ]
    }
  ],
  "tags": [
    "auxiliary"
  ],
  "word": "のだ"
}