"мн." meaning in Russian

{
  "forms": [
    {
      "form": "mn.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "n-in",
        "3": "-"
      },
      "expansion": "мн. • (mn.) n inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "mnóžestvennoje čisló, “plural number”",
          "word": "мно́жественное число́"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "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": "topical",
          "langcode": "ru",
          "name": "Grammar",
          "orig": "ru:Grammar",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "pl. — plural form",
          "ref": "1958, G.M. Vasilevič, Эвенкийско-Русский Словарь [Evenkijsko-Russkij Slovarʹ], Moscow: GIS, page 9/1:",
          "roman": "Evenkijsko-Russkij Slovarʹ",
          "text": "мн. — фо́рма мно́жественного числа",
          "type": "quote"
        }
      ],
      "glosses": [
        "abbreviation of мно́жественное число́ (mnóžestvennoje čisló, “plural number”)"
      ],
      "id": "en-мн.-ru-noun-OyqpfinZ",
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "мно́жественное число́",
          "множественное число#Russian"
        ],
        [
          "plural",
          "plural"
        ],
        [
          "number",
          "number"
        ]
      ],
      "raw_glosses": [
        "(grammar) abbreviation of мно́жественное число́ (mnóžestvennoje čisló, “plural number”)"
      ],
      "synonyms": [
        {
          "word": "мн. ч."
        },
        {
          "word": "мн.ч."
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "мн."
}

{
  "forms": [
    {
      "form": "mn.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "n-in",
        "3": "-"
      },
      "expansion": "мн. • (mn.) n inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "mnóžestvennoje čisló, “plural number”",
          "word": "мно́жественное число́"
        }
      ],
      "categories": [
        "Pages with 3 entries",
        "Pages with entries",
        "Russian abbreviations",
        "Russian entries with incorrect language header",
        "Russian inanimate nouns",
        "Russian indeclinable nouns",
        "Russian lemmas",
        "Russian neuter nouns",
        "Russian nouns",
        "Russian terms spelled with .",
        "Russian terms with quotations",
        "Russian terms with redundant head parameter",
        "ru:Grammar"
      ],
      "examples": [
        {
          "english": "pl. — plural form",
          "ref": "1958, G.M. Vasilevič, Эвенкийско-Русский Словарь [Evenkijsko-Russkij Slovarʹ], Moscow: GIS, page 9/1:",
          "roman": "Evenkijsko-Russkij Slovarʹ",
          "text": "мн. — фо́рма мно́жественного числа",
          "type": "quote"
        }
      ],
      "glosses": [
        "abbreviation of мно́жественное число́ (mnóžestvennoje čisló, “plural number”)"
      ],
      "links": [
        [
          "grammar",
          "grammar"
        ],
        [
          "мно́жественное число́",
          "множественное число#Russian"
        ],
        [
          "plural",
          "plural"
        ],
        [
          "number",
          "number"
        ]
      ],
      "raw_glosses": [
        "(grammar) abbreviation of мно́жественное число́ (mnóžestvennoje čisló, “plural number”)"
      ],
      "synonyms": [
        {
          "word": "мн. ч."
        },
        {
          "word": "мн.ч."
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ],
      "topics": [
        "grammar",
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "мн."
}