"nr" meaning in Polish

{
  "head_templates": [
    {
      "args": {
        "1": "m-in"
      },
      "expansion": "nr m inan",
      "name": "pl-noun"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "(“No.; no.”).",
          "word": "numer"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Polish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Polish links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of numer (“No.; no.”)."
      ],
      "id": "en-nr-pl-noun-2IkFQPp6",
      "links": [
        [
          "numer",
          "numer#Polish"
        ],
        [
          "No.",
          "No."
        ],
        [
          "no.",
          "no."
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "inanimate",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈnu.mɛr/"
    },
    {
      "rhymes": "-umer"
    }
  ],
  "word": "nr"
}

{
  "head_templates": [
    {
      "args": {
        "1": "m-in"
      },
      "expansion": "nr m inan",
      "name": "pl-noun"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "(“No.; no.”).",
          "word": "numer"
        }
      ],
      "categories": [
        "Polish 2-syllable words",
        "Polish abbreviations",
        "Polish entries with incorrect language header",
        "Polish inanimate nouns",
        "Polish lemmas",
        "Polish links with redundant wikilinks",
        "Polish masculine nouns",
        "Polish nouns",
        "Polish terms with IPA pronunciation",
        "Polish terms with audio links",
        "Rhymes:Polish/umer",
        "Rhymes:Polish/umer/1 syllable"
      ],
      "glosses": [
        "Abbreviation of numer (“No.; no.”)."
      ],
      "links": [
        [
          "numer",
          "numer#Polish"
        ],
        [
          "No.",
          "No."
        ],
        [
          "no.",
          "no."
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "inanimate",
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈnu.mɛr/"
    },
    {
      "rhymes": "-umer"
    }
  ],
  "word": "nr"
}