"libreto" meaning in Esperanto

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "libro",
        "3": "-et-",
        "t1": "book",
        "t2": "small"
      },
      "expansion": "libro (“book”) + -et- (“small”)",
      "name": "suf"
    }
  ],
  "etymology_text": "From libro (“book”) + -et- (“small”).",
  "forms": [
    {
      "form": "libreton",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "libretoj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "libretojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "libreto (accusative singular libreton, plural libretoj, accusative plural libretojn)",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "li‧bre‧to"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "a booklet"
      ],
      "id": "en-libreto-eo-noun-ZFLv3fDO",
      "links": [
        [
          "booklet",
          "booklet"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "eo",
          "name": "Opera",
          "orig": "eo:Opera",
          "parents": [
            "Musical genres",
            "Theater",
            "Genres",
            "Music",
            "Art",
            "Entertainment",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "30 70",
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "22 78",
          "kind": "other",
          "name": "Esperanto terms suffixed with -et-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "11 89",
          "kind": "topical",
          "langcode": "eo",
          "name": "Books",
          "orig": "eo:Books",
          "parents": [
            "Literature",
            "Mass media",
            "Culture",
            "Entertainment",
            "Writing",
            "Media",
            "Society",
            "Human behaviour",
            "Language",
            "Communication",
            "All topics",
            "Human",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "libretto"
      ],
      "id": "en-libreto-eo-noun-SIZEeXHQ",
      "links": [
        [
          "opera",
          "opera"
        ],
        [
          "libretto",
          "libretto"
        ]
      ],
      "qualifier": "opera",
      "raw_glosses": [
        "(opera) libretto"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q143 (epo)-Robin van der Vliet-libreto.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cf/LL-Q143_%28epo%29-Robin_van_der_Vliet-libreto.wav/LL-Q143_%28epo%29-Robin_van_der_Vliet-libreto.wav.mp3",
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    },
    {
      "ipa": "[liˈbreto]"
    },
    {
      "rhymes": "-eto"
    }
  ],
  "word": "libreto"
}

{
  "categories": [
    "Esperanto entries with incorrect language header",
    "Esperanto lemmas",
    "Esperanto nouns",
    "Esperanto terms suffixed with -et-",
    "Esperanto terms with IPA pronunciation",
    "Pages with 6 entries",
    "Pages with entries",
    "Rhymes:Esperanto/eto",
    "eo:Books"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "libro",
        "3": "-et-",
        "t1": "book",
        "t2": "small"
      },
      "expansion": "libro (“book”) + -et- (“small”)",
      "name": "suf"
    }
  ],
  "etymology_text": "From libro (“book”) + -et- (“small”).",
  "forms": [
    {
      "form": "libreton",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "libretoj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "libretojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "libreto (accusative singular libreton, plural libretoj, accusative plural libretojn)",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "li‧bre‧to"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "a booklet"
      ],
      "links": [
        [
          "booklet",
          "booklet"
        ]
      ]
    },
    {
      "categories": [
        "eo:Opera"
      ],
      "glosses": [
        "libretto"
      ],
      "links": [
        [
          "opera",
          "opera"
        ],
        [
          "libretto",
          "libretto"
        ]
      ],
      "qualifier": "opera",
      "raw_glosses": [
        "(opera) libretto"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q143 (epo)-Robin van der Vliet-libreto.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cf/LL-Q143_%28epo%29-Robin_van_der_Vliet-libreto.wav/LL-Q143_%28epo%29-Robin_van_der_Vliet-libreto.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cf/LL-Q143_%28epo%29-Robin_van_der_Vliet-libreto.wav/LL-Q143_%28epo%29-Robin_van_der_Vliet-libreto.wav.ogg"
    },
    {
      "ipa": "[liˈbreto]"
    },
    {
      "rhymes": "-eto"
    }
  ],
  "word": "libreto"
}