"былью" meaning in Russian

{
  "etymology_number": 1,
  "forms": [
    {
      "form": "бы́лью",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "býlʹju",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "f-in",
        "head": "бы́лью"
      },
      "expansion": "бы́лью • (býlʹju) f inan",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "70 30",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "82 18",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "77 23",
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "extra": "bylʹ",
          "word": "быль"
        }
      ],
      "glosses": [
        "instrumental singular of быль (bylʹ)"
      ],
      "id": "en-былью-ru-noun-9zSbWCms",
      "links": [
        [
          "быль",
          "быль#Russian"
        ]
      ],
      "tags": [
        "form-of",
        "instrumental",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈbɨlʲjʊ]"
    }
  ],
  "word": "былью"
}

{
  "etymology_number": 2,
  "forms": [
    {
      "form": "былью́",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "bylʹjú",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "n-in",
        "head": "былью́"
      },
      "expansion": "былью́ • (bylʹjú) n inan",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "extra": "bylʹjó",
          "word": "быльё"
        }
      ],
      "glosses": [
        "dative singular of быльё (bylʹjó)"
      ],
      "id": "en-былью-ru-noun-ZUudG7kc",
      "links": [
        [
          "быльё",
          "быльё#Russian"
        ]
      ],
      "tags": [
        "dative",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[bɨˈlʲju]"
    }
  ],
  "word": "былью"
}

{
  "categories": [
    "Pages with 1 entry",
    "Pages with entries",
    "Russian 2-syllable words",
    "Russian entries with incorrect language header",
    "Russian non-lemma forms",
    "Russian noun forms",
    "Russian terms with IPA pronunciation"
  ],
  "etymology_number": 1,
  "forms": [
    {
      "form": "бы́лью",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "býlʹju",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "f-in",
        "head": "бы́лью"
      },
      "expansion": "бы́лью • (býlʹju) f inan",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "extra": "bylʹ",
          "word": "быль"
        }
      ],
      "glosses": [
        "instrumental singular of быль (bylʹ)"
      ],
      "links": [
        [
          "быль",
          "быль#Russian"
        ]
      ],
      "tags": [
        "form-of",
        "instrumental",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈbɨlʲjʊ]"
    }
  ],
  "word": "былью"
}

{
  "categories": [
    "Pages with 1 entry",
    "Pages with entries",
    "Russian 2-syllable words",
    "Russian entries with incorrect language header",
    "Russian non-lemma forms",
    "Russian noun forms",
    "Russian terms with IPA pronunciation"
  ],
  "etymology_number": 2,
  "forms": [
    {
      "form": "былью́",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "bylʹjú",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "n-in",
        "head": "былью́"
      },
      "expansion": "былью́ • (bylʹjú) n inan",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "extra": "bylʹjó",
          "word": "быльё"
        }
      ],
      "glosses": [
        "dative singular of быльё (bylʹjó)"
      ],
      "links": [
        [
          "быльё",
          "быльё#Russian"
        ]
      ],
      "tags": [
        "dative",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[bɨˈlʲju]"
    }
  ],
  "word": "былью"
}