"class variable" meaning in English

{
  "antonyms": [
    {
      "word": "instance variable"
    }
  ],
  "forms": [
    {
      "form": "class variables",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "class variable (plural class variables)",
      "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": "other",
          "name": "Japanese terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Object-oriented programming",
          "orig": "en:Object-oriented programming",
          "parents": [
            "Programming",
            "Computing",
            "Software engineering",
            "Technology",
            "Computer science",
            "Engineering",
            "Software",
            "All topics",
            "Sciences",
            "Applied sciences",
            "Media",
            "Fundamental",
            "Communication"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Software",
          "orig": "en:Software",
          "parents": [
            "Computing",
            "Media",
            "Technology",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A member variable that is associated with a class of which a single copy exists."
      ],
      "id": "en-class_variable-en-noun-UQaV~qq3",
      "links": [
        [
          "software",
          "software"
        ],
        [
          "object-oriented programming",
          "object-oriented programming"
        ],
        [
          "member variable",
          "member variable"
        ],
        [
          "class",
          "class"
        ]
      ],
      "qualifier": "object-oriented programming",
      "raw_glosses": [
        "(software, object-oriented programming) A member variable that is associated with a class of which a single copy exists."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences",
        "software"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Translations",
          "word": "luokkamuuttuja"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "variable de classe"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "Klassenvariable"
        },
        {
          "code": "el",
          "lang": "Greek",
          "roman": "metavlití klásis",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "μεταβλητή κλάσης"
        },
        {
          "code": "ja",
          "lang": "Japanese",
          "roman": "kurasu hensū",
          "sense": "Translations",
          "word": "クラス変数"
        },
        {
          "code": "ro",
          "lang": "Romanian",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "variabilă de clasă"
        }
      ],
      "wikipedia": [
        "class variable"
      ]
    }
  ],
  "word": "class variable"
}

{
  "antonyms": [
    {
      "word": "instance variable"
    }
  ],
  "forms": [
    {
      "form": "class variables",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "class variable (plural class variables)",
      "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",
        "Japanese terms with redundant script codes",
        "Translation table header lacks gloss",
        "en:Object-oriented programming",
        "en:Software"
      ],
      "glosses": [
        "A member variable that is associated with a class of which a single copy exists."
      ],
      "links": [
        [
          "software",
          "software"
        ],
        [
          "object-oriented programming",
          "object-oriented programming"
        ],
        [
          "member variable",
          "member variable"
        ],
        [
          "class",
          "class"
        ]
      ],
      "qualifier": "object-oriented programming",
      "raw_glosses": [
        "(software, object-oriented programming) A member variable that is associated with a class of which a single copy exists."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences",
        "software"
      ],
      "wikipedia": [
        "class variable"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "luokkamuuttuja"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "variable de classe"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "Klassenvariable"
    },
    {
      "code": "el",
      "lang": "Greek",
      "roman": "metavlití klásis",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "μεταβλητή κλάσης"
    },
    {
      "code": "ja",
      "lang": "Japanese",
      "roman": "kurasu hensū",
      "sense": "Translations",
      "word": "クラス変数"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "variabilă de clasă"
    }
  ],
  "word": "class variable"
}