"belle époque" meaning in Polish

{
  "etymology_templates": [
    {
      "args": {
        "1": "pl",
        "2": "fr",
        "3": "Belle Époque"
      },
      "expansion": "Unadapted borrowing from French Belle Époque",
      "name": "ubor"
    }
  ],
  "etymology_text": "Unadapted borrowing from French Belle Époque.",
  "head_templates": [
    {
      "args": {
        "1": "f",
        "head": "belle époque",
        "indecl": "yes"
      },
      "expansion": "belle époque f (indeclinable)",
      "name": "pl-proper noun"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "_dis": "77 23",
          "kind": "other",
          "name": "Polish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "50 50",
          "kind": "topical",
          "langcode": "pl",
          "name": "History of Europe",
          "orig": "pl:History of Europe",
          "parents": [
            "Europe",
            "History",
            "Earth",
            "Eurasia",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Belle Époque"
      ],
      "id": "en-belle_époque-pl-name-P2UsKzLn",
      "links": [
        [
          "Belle Époque",
          "Belle Époque"
        ]
      ],
      "raw_glosses": [
        "(historical) Belle Époque"
      ],
      "tags": [
        "feminine",
        "historical",
        "indeclinable"
      ]
    },
    {
      "categories": [
        {
          "_dis": "50 50",
          "kind": "topical",
          "langcode": "pl",
          "name": "History of Europe",
          "orig": "pl:History of Europe",
          "parents": [
            "Europe",
            "History",
            "Earth",
            "Eurasia",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "auspicious, happy period in someone's life"
      ],
      "id": "en-belle_époque-pl-name-Ut~cHypn",
      "links": [
        [
          "auspicious",
          "auspicious"
        ],
        [
          "happy",
          "happy"
        ],
        [
          "period",
          "period"
        ],
        [
          "life",
          "life"
        ]
      ],
      "raw_glosses": [
        "(by extension, figuratively) auspicious, happy period in someone's life"
      ],
      "tags": [
        "broadly",
        "feminine",
        "figuratively",
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈbɛl ɛˈpɔk/"
    },
    {
      "rhymes": "-ɛpɔk"
    }
  ],
  "word": "belle époque"
}

{
  "categories": [
    "Polish entries with incorrect language header",
    "Polish feminine nouns",
    "Polish indeclinable nouns",
    "Polish lemmas",
    "Polish multiword terms",
    "Polish proper nouns",
    "Polish terms borrowed from French",
    "Polish terms derived from French",
    "Polish terms spelled with Q",
    "Polish terms spelled with É",
    "Polish terms with IPA pronunciation",
    "Polish unadapted borrowings from French",
    "Rhymes:Polish/ɛpɔk",
    "pl:History of Europe"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "pl",
        "2": "fr",
        "3": "Belle Époque"
      },
      "expansion": "Unadapted borrowing from French Belle Époque",
      "name": "ubor"
    }
  ],
  "etymology_text": "Unadapted borrowing from French Belle Époque.",
  "head_templates": [
    {
      "args": {
        "1": "f",
        "head": "belle époque",
        "indecl": "yes"
      },
      "expansion": "belle époque f (indeclinable)",
      "name": "pl-proper noun"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Polish terms with historical senses"
      ],
      "glosses": [
        "Belle Époque"
      ],
      "links": [
        [
          "Belle Époque",
          "Belle Époque"
        ]
      ],
      "raw_glosses": [
        "(historical) Belle Époque"
      ],
      "tags": [
        "feminine",
        "historical",
        "indeclinable"
      ]
    },
    {
      "glosses": [
        "auspicious, happy period in someone's life"
      ],
      "links": [
        [
          "auspicious",
          "auspicious"
        ],
        [
          "happy",
          "happy"
        ],
        [
          "period",
          "period"
        ],
        [
          "life",
          "life"
        ]
      ],
      "raw_glosses": [
        "(by extension, figuratively) auspicious, happy period in someone's life"
      ],
      "tags": [
        "broadly",
        "feminine",
        "figuratively",
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈbɛl ɛˈpɔk/"
    },
    {
      "rhymes": "-ɛpɔk"
    }
  ],
  "word": "belle époque"
}