"一番勝負" 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"
    },
    {
      "kind": "other",
      "name": "日本語 国際音声記号あり",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 複合語",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "複合語 一番 + 勝負"
  ],
  "forms": [
    {
      "form": "いちばんしょうぶ",
      "tags": [
        "transliteration"
      ]
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "三番勝負"
    },
    {
      "word": "番勝負"
    }
  ],
  "senses": [
    {
      "glosses": [
        "一回だけ戦って勝敗を決めること。"
      ],
      "id": "ja-一番勝負-ja-noun-dwyHZ66r"
    },
    {
      "glosses": [
        "一回だけ試すこと。"
      ],
      "id": "ja-一番勝負-ja-noun-NnbxfTar",
      "ruby": [
        [
          "試",
          "ため"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "いちばんしょーぶ",
      "roman": "[ìchíbáńshóꜜòbù]",
      "tags": [
        "Nakadaka",
        "Tokyo"
      ]
    },
    {
      "ipa": "[it͡ɕibã̠ɰ̃ɕo̞ːbɯ̟ᵝ]"
    }
  ],
  "synonyms": [
    {
      "word": "一発勝負"
    }
  ],
  "word": "一番勝負"
}

{
  "categories": [
    "日本語",
    "日本語 名詞",
    "日本語 国際音声記号あり",
    "日本語 複合語"
  ],
  "etymology_texts": [
    "複合語 一番 + 勝負"
  ],
  "forms": [
    {
      "form": "いちばんしょうぶ",
      "tags": [
        "transliteration"
      ]
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "三番勝負"
    },
    {
      "word": "番勝負"
    }
  ],
  "senses": [
    {
      "glosses": [
        "一回だけ戦って勝敗を決めること。"
      ]
    },
    {
      "glosses": [
        "一回だけ試すこと。"
      ],
      "ruby": [
        [
          "試",
          "ため"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "いちばんしょーぶ",
      "roman": "[ìchíbáńshóꜜòbù]",
      "tags": [
        "Nakadaka",
        "Tokyo"
      ]
    },
    {
      "ipa": "[it͡ɕibã̠ɰ̃ɕo̞ːbɯ̟ᵝ]"
    }
  ],
  "synonyms": [
    {
      "word": "一発勝負"
    }
  ],
  "word": "一番勝負"
}