"even money" meaning in English

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      "expansion": "even money (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "_dis": "55 45",
          "kind": "topical",
          "langcode": "en",
          "name": "Probability theory",
          "orig": "en:Probability theory",
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            "Mathematical analysis",
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w+disamb"
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      ],
      "glosses": [
        "A bet which offers odds of 1 to 1."
      ],
      "id": "en-even_money-en-noun-VkH~C-bu",
      "links": [
        [
          "bet",
          "bet"
        ],
        [
          "odds",
          "odds"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    },
    {
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          "kind": "topical",
          "langcode": "en",
          "name": "Probability theory",
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            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
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          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "It's even money that it will rain today.",
          "type": "example"
        }
      ],
      "glosses": [
        "By extension, an event that is somewhat likely to happen, but far from inevitable."
      ],
      "id": "en-even_money-en-noun-LMX1FGC3",
      "links": [
        [
          "event",
          "event"
        ],
        [
          "likely",
          "likely"
        ],
        [
          "inevitable",
          "inevitable"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) By extension, an event that is somewhat likely to happen, but far from inevitable."
      ],
      "tags": [
        "idiomatic",
        "uncountable"
      ]
    }
  ],
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  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "evens"
    },
    {
      "_dis1": "0 0",
      "word": "evs"
    }
  ],
  "word": "even money"
}

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    "English uncountable nouns",
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    "en:Probability theory"
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  "head_templates": [
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      "expansion": "even money (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A bet which offers odds of 1 to 1."
      ],
      "links": [
        [
          "bet",
          "bet"
        ],
        [
          "odds",
          "odds"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    },
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      "examples": [
        {
          "text": "It's even money that it will rain today.",
          "type": "example"
        }
      ],
      "glosses": [
        "By extension, an event that is somewhat likely to happen, but far from inevitable."
      ],
      "links": [
        [
          "event",
          "event"
        ],
        [
          "likely",
          "likely"
        ],
        [
          "inevitable",
          "inevitable"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) By extension, an event that is somewhat likely to happen, but far from inevitable."
      ],
      "tags": [
        "idiomatic",
        "uncountable"
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  "synonyms": [
    {
      "word": "evens"
    },
    {
      "word": "evs"
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  "word": "even money"
}