"в-четвёртых" meaning in Russian

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "в",
        "3": "четвёртый",
        "alt2": "четвёртых"
      },
      "expansion": "в (v) + четвёртых (četvjórtyx)",
      "name": "af"
    }
  ],
  "etymology_text": "в (v) + четвёртых (četvjórtyx)",
  "forms": [
    {
      "form": "v-četvjórtyx",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "в-четвёртых • (v-četvjórtyx)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ru",
          "name": "Four",
          "orig": "ru:Four",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "fourthly, in the fourth place"
      ],
      "id": "en-в-четвёртых-ru-adv-gh3KpcLD",
      "links": [
        [
          "fourthly",
          "fourthly"
        ],
        [
          "fourth",
          "fourth"
        ]
      ],
      "related": [
        {
          "roman": "včétvero",
          "word": "вче́тверо"
        },
        {
          "roman": "včetveróm",
          "word": "вчетверо́м"
        },
        {
          "roman": "četvjórtyj",
          "word": "четвёртый"
        },
        {
          "roman": "četvertnój",
          "word": "четвертно́й"
        },
        {
          "roman": "četýre",
          "word": "четы́ре"
        },
        {
          "roman": "čétvero",
          "word": "че́тверо"
        },
        {
          "roman": "čétvertʹ",
          "word": "че́тверть"
        },
        {
          "roman": "četvjórtka",
          "word": "четвёртка"
        },
        {
          "roman": "četvjórka",
          "word": "четвёрка"
        },
        {
          "roman": "četvernój",
          "word": "четверно́й"
        },
        {
          "roman": "četvernjá",
          "word": "четверня́"
        },
        {
          "roman": "četvérg",
          "word": "четве́рг"
        },
        {
          "roman": "četvertovátʹ",
          "word": "четвертова́ть"
        },
        {
          "roman": "četvertovánije",
          "word": "четвертова́ние"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[f‿t͡ɕɪtˈvʲɵrtɨx]"
    },
    {
      "audio": "Ru-в-четвёртых.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/3/35/Ru-%D0%B2-%D1%87%D0%B5%D1%82%D0%B2%D1%91%D1%80%D1%82%D1%8B%D1%85.ogg/Ru-%D0%B2-%D1%87%D0%B5%D1%82%D0%B2%D1%91%D1%80%D1%82%D1%8B%D1%85.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/3/35/Ru-%D0%B2-%D1%87%D0%B5%D1%82%D0%B2%D1%91%D1%80%D1%82%D1%8B%D1%85.ogg",
      "text": "Audio"
    }
  ],
  "word": "в-четвёртых"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "в",
        "3": "четвёртый",
        "alt2": "четвёртых"
      },
      "expansion": "в (v) + четвёртых (četvjórtyx)",
      "name": "af"
    }
  ],
  "etymology_text": "в (v) + четвёртых (četvjórtyx)",
  "forms": [
    {
      "form": "v-četvjórtyx",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "в-четвёртых • (v-četvjórtyx)",
      "name": "ru-adv"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adv",
  "related": [
    {
      "roman": "včétvero",
      "word": "вче́тверо"
    },
    {
      "roman": "včetveróm",
      "word": "вчетверо́м"
    },
    {
      "roman": "četvjórtyj",
      "word": "четвёртый"
    },
    {
      "roman": "četvertnój",
      "word": "четвертно́й"
    },
    {
      "roman": "četýre",
      "word": "четы́ре"
    },
    {
      "roman": "čétvero",
      "word": "че́тверо"
    },
    {
      "roman": "čétvertʹ",
      "word": "че́тверть"
    },
    {
      "roman": "četvjórtka",
      "word": "четвёртка"
    },
    {
      "roman": "četvjórka",
      "word": "четвёрка"
    },
    {
      "roman": "četvernój",
      "word": "четверно́й"
    },
    {
      "roman": "četvernjá",
      "word": "четверня́"
    },
    {
      "roman": "četvérg",
      "word": "четве́рг"
    },
    {
      "roman": "četvertovátʹ",
      "word": "четвертова́ть"
    },
    {
      "roman": "četvertovánije",
      "word": "четвертова́ние"
    }
  ],
  "senses": [
    {
      "categories": [
        "Russian adverbs",
        "Russian compound terms",
        "Russian entries with incorrect language header",
        "Russian lemmas",
        "Russian multiword terms",
        "Russian terms with IPA pronunciation",
        "Russian terms with audio links",
        "Russian terms with redundant head parameter",
        "ru:Four"
      ],
      "glosses": [
        "fourthly, in the fourth place"
      ],
      "links": [
        [
          "fourthly",
          "fourthly"
        ],
        [
          "fourth",
          "fourth"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[f‿t͡ɕɪtˈvʲɵrtɨx]"
    },
    {
      "audio": "Ru-в-четвёртых.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/3/35/Ru-%D0%B2-%D1%87%D0%B5%D1%82%D0%B2%D1%91%D1%80%D1%82%D1%8B%D1%85.ogg/Ru-%D0%B2-%D1%87%D0%B5%D1%82%D0%B2%D1%91%D1%80%D1%82%D1%8B%D1%85.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/3/35/Ru-%D0%B2-%D1%87%D0%B5%D1%82%D0%B2%D1%91%D1%80%D1%82%D1%8B%D1%85.ogg",
      "text": "Audio"
    }
  ],
  "word": "в-четвёртых"
}