"dead of winter" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Winter",
          "orig": "en:Winter",
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            "Seasons",
            "Nature",
            "Periodic occurrences",
            "All topics",
            "Time",
            "Fundamental"
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      "examples": [
        {
          "ref": "1995 April 16, Orville Schell, “THE STRANGE ORDEAL OF OWEN LATTIMORE”, in The Washington Post, →ISSN, →OCLC, archived from the original on 2017-12-08:",
          "text": "Eleanor chronicled both her solo journey from Beijing via the Trans-Siberian Railroad to Novosibirsk and Semipalatinsk and then via sled in the dead of winter to Chuguchak and the couple's subsequent travels in Turkestan Reunion. Their odyssey together across Xinjiang provided the framework for Lattimore's much broader cultural and historical observations in High Tartary.",
          "type": "quote"
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      ],
      "glosses": [
        "The middle of the winter, characterized by being particularly cold."
      ],
      "id": "en-dead_of_winter-en-noun-tIhlz~zn",
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        [
          "winter",
          "winter"
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        [
          "cold",
          "cold"
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      ],
      "raw_glosses": [
        "(idiomatic) The middle of the winter, characterized by being particularly cold."
      ],
      "tags": [
        "idiomatic"
      ]
    }
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  "word": "dead of winter"
}

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "ref": "1995 April 16, Orville Schell, “THE STRANGE ORDEAL OF OWEN LATTIMORE”, in The Washington Post, →ISSN, →OCLC, archived from the original on 2017-12-08:",
          "text": "Eleanor chronicled both her solo journey from Beijing via the Trans-Siberian Railroad to Novosibirsk and Semipalatinsk and then via sled in the dead of winter to Chuguchak and the couple's subsequent travels in Turkestan Reunion. Their odyssey together across Xinjiang provided the framework for Lattimore's much broader cultural and historical observations in High Tartary.",
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        }
      ],
      "glosses": [
        "The middle of the winter, characterized by being particularly cold."
      ],
      "links": [
        [
          "winter",
          "winter"
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          "cold",
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        "(idiomatic) The middle of the winter, characterized by being particularly cold."
      ],
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  "word": "dead of winter"
}