"murder book" meaning in English

{
  "forms": [
    {
      "form": "murder books",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "murder book (plural murder books)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "ref": "1983, “Eyes Without a Face”, in Rebel Yell, performed by Billy Idol",
          "text": "I'm on a bus on a psychedelic trip / Reading murder books, trying to stay hip",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A murder mystery book."
      ],
      "id": "en-murder_book-en-noun-1tgHPRL4",
      "links": [
        [
          "murder mystery",
          "murder mystery"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Law enforcement",
          "orig": "en:Law enforcement",
          "parents": [
            "Crime prevention",
            "Emergency services",
            "Law",
            "Crime",
            "Public safety",
            "Justice",
            "Criminal law",
            "Society",
            "Public administration",
            "Security",
            "All topics",
            "Government",
            "Fundamental",
            "Politics"
          ],
          "source": "w"
        },
        {
          "_dis": "15 85",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A case file of a murder investigation."
      ],
      "id": "en-murder_book-en-noun-ttZJDhPB",
      "links": [
        [
          "law enforcement",
          "law enforcement"
        ],
        [
          "case",
          "case"
        ],
        [
          "file",
          "file"
        ],
        [
          "investigation",
          "investigation"
        ]
      ],
      "raw_glosses": [
        "(law enforcement) A case file of a murder investigation."
      ],
      "topics": [
        "government",
        "law-enforcement"
      ]
    }
  ],
  "word": "murder book"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns"
  ],
  "forms": [
    {
      "form": "murder books",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "murder book (plural murder books)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1983, “Eyes Without a Face”, in Rebel Yell, performed by Billy Idol",
          "text": "I'm on a bus on a psychedelic trip / Reading murder books, trying to stay hip",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A murder mystery book."
      ],
      "links": [
        [
          "murder mystery",
          "murder mystery"
        ]
      ]
    },
    {
      "categories": [
        "en:Law enforcement"
      ],
      "glosses": [
        "A case file of a murder investigation."
      ],
      "links": [
        [
          "law enforcement",
          "law enforcement"
        ],
        [
          "case",
          "case"
        ],
        [
          "file",
          "file"
        ],
        [
          "investigation",
          "investigation"
        ]
      ],
      "raw_glosses": [
        "(law enforcement) A case file of a murder investigation."
      ],
      "topics": [
        "government",
        "law-enforcement"
      ]
    }
  ],
  "word": "murder book"
}