"librone" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "libro",
        "3": "one",
        "t1": "book"
      },
      "expansion": "libro (“book”) + -one",
      "name": "suffix"
    }
  ],
  "etymology_text": "From libro (“book”) + -one.",
  "forms": [
    {
      "form": "libroni",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "librone m (plural libroni)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Italian terms suffixed with -one",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "large book",
          "word": "libro"
        }
      ],
      "glosses": [
        "Augmentative of libro: large book"
      ],
      "id": "en-librone-it-noun-~9dOqNMi",
      "links": [
        [
          "libro",
          "libro#Italian"
        ],
        [
          "large",
          "large"
        ],
        [
          "book",
          "book"
        ]
      ],
      "tags": [
        "augmentative",
        "form-of",
        "masculine"
      ]
    }
  ],
  "word": "librone"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "libro",
        "3": "one",
        "t1": "book"
      },
      "expansion": "libro (“book”) + -one",
      "name": "suffix"
    }
  ],
  "etymology_text": "From libro (“book”) + -one.",
  "forms": [
    {
      "form": "libroni",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "librone m (plural libroni)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Italian augmentative nouns",
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian masculine nouns",
        "Italian nouns",
        "Italian nouns with red links in their headword lines",
        "Italian terms suffixed with -one"
      ],
      "form_of": [
        {
          "extra": "large book",
          "word": "libro"
        }
      ],
      "glosses": [
        "Augmentative of libro: large book"
      ],
      "links": [
        [
          "libro",
          "libro#Italian"
        ],
        [
          "large",
          "large"
        ],
        [
          "book",
          "book"
        ]
      ],
      "tags": [
        "augmentative",
        "form-of",
        "masculine"
      ]
    }
  ],
  "word": "librone"
}