"-го" meaning in Russian

{
  "forms": [
    {
      "form": "-vo",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "suffix",
        "tr": "-vo"
      },
      "expansion": "-го • (-vo)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian terms with non-redundant manual transliterations",
          "parents": [
            "Terms with non-redundant manual transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "On the 10th of September last year we turned the machine on for the first time.",
          "roman": "10-vo sentjabrjá próšlovo goda my vključíli ustanóvku v pérvyj raz.",
          "text": "10-го сентября́ про́шлого года мы включи́ли устано́вку в пе́рвый раз.",
          "type": "example"
        }
      ],
      "glosses": [
        "Affixed to the end of numerals to mean \"in or on + (date)\""
      ],
      "id": "en--го-ru-suffix-sqoc-DFo",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[və]"
    }
  ],
  "word": "-го"
}

{
  "forms": [
    {
      "form": "-vo",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "suffix",
        "tr": "-vo"
      },
      "expansion": "-го • (-vo)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Russian 1-syllable words",
        "Russian entries with incorrect language header",
        "Russian lemmas",
        "Russian suffixes",
        "Russian terms with IPA pronunciation",
        "Russian terms with non-redundant manual transliterations",
        "Russian terms with usage examples"
      ],
      "examples": [
        {
          "english": "On the 10th of September last year we turned the machine on for the first time.",
          "roman": "10-vo sentjabrjá próšlovo goda my vključíli ustanóvku v pérvyj raz.",
          "text": "10-го сентября́ про́шлого года мы включи́ли устано́вку в пе́рвый раз.",
          "type": "example"
        }
      ],
      "glosses": [
        "Affixed to the end of numerals to mean \"in or on + (date)\""
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[və]"
    }
  ],
  "word": "-го"
}