"call number" meaning in English

{
  "forms": [
    {
      "form": "call numbers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "call number (plural call numbers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Library science",
          "orig": "en:Library science",
          "parents": [
            "Education",
            "Information science",
            "Sciences",
            "Society",
            "Applied sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An identification number, usually consisting of a combination of numbers and characters, used to identify and locate materials within a library; the shelfmark that conveys it."
      ],
      "id": "en-call_number-en-noun-xpezvWYQ",
      "links": [
        [
          "library science",
          "library science"
        ],
        [
          "identification",
          "identification"
        ],
        [
          "library",
          "library"
        ],
        [
          "shelfmark",
          "shelfmark"
        ]
      ],
      "qualifier": "library science",
      "raw_glosses": [
        "(library science) An identification number, usually consisting of a combination of numbers and characters, used to identify and locate materials within a library; the shelfmark that conveys it."
      ],
      "translations": [
        {
          "code": "ca",
          "lang": "Catalan",
          "sense": "identification number for materials within a library",
          "word": "signatura topogràfica"
        },
        {
          "code": "ca",
          "lang": "Catalan",
          "sense": "identification number for materials within a library",
          "word": "signatura"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "identification number for materials within a library",
          "tags": [
            "feminine"
          ],
          "word": "cote"
        },
        {
          "code": "ga",
          "lang": "Irish",
          "sense": "identification number for materials within a library",
          "tags": [
            "feminine"
          ],
          "word": "gairmuimhir"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "identification number for materials within a library",
          "tags": [
            "neuter"
          ],
          "word": "hyllsignum"
        }
      ],
      "wikipedia": [
        "call number"
      ]
    }
  ],
  "word": "call number"
}

{
  "forms": [
    {
      "form": "call numbers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "call number (plural call numbers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Library science"
      ],
      "glosses": [
        "An identification number, usually consisting of a combination of numbers and characters, used to identify and locate materials within a library; the shelfmark that conveys it."
      ],
      "links": [
        [
          "library science",
          "library science"
        ],
        [
          "identification",
          "identification"
        ],
        [
          "library",
          "library"
        ],
        [
          "shelfmark",
          "shelfmark"
        ]
      ],
      "qualifier": "library science",
      "raw_glosses": [
        "(library science) An identification number, usually consisting of a combination of numbers and characters, used to identify and locate materials within a library; the shelfmark that conveys it."
      ],
      "wikipedia": [
        "call number"
      ]
    }
  ],
  "translations": [
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "identification number for materials within a library",
      "word": "signatura topogràfica"
    },
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "identification number for materials within a library",
      "word": "signatura"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "identification number for materials within a library",
      "tags": [
        "feminine"
      ],
      "word": "cote"
    },
    {
      "code": "ga",
      "lang": "Irish",
      "sense": "identification number for materials within a library",
      "tags": [
        "feminine"
      ],
      "word": "gairmuimhir"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "identification number for materials within a library",
      "tags": [
        "neuter"
      ],
      "word": "hyllsignum"
    }
  ],
  "word": "call number"
}