"abstract class" meaning in English

{
  "antonyms": [
    {
      "word": "concrete class"
    }
  ],
  "forms": [
    {
      "form": "abstract classes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "abstract class (plural abstract classes)",
      "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": "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"
        }
      ],
      "glosses": [
        "A class that cannot be instantiated and may have abstract method."
      ],
      "id": "en-abstract_class-en-noun-tcYp~S60",
      "links": [
        [
          "object-oriented programming",
          "object-oriented programming"
        ],
        [
          "class",
          "class"
        ],
        [
          "instantiated",
          "instantiate"
        ],
        [
          "abstract method",
          "abstract method"
        ]
      ],
      "qualifier": "object-oriented programming",
      "raw_glosses": [
        "(object-oriented programming) A class that cannot be instantiated and may have abstract method."
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "in software - a class which cannot be instantiated",
          "word": "abstrakti luokka"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "in software - a class which cannot be instantiated",
          "tags": [
            "feminine"
          ],
          "word": "classe abstraite"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "in software - a class which cannot be instantiated",
          "tags": [
            "feminine"
          ],
          "word": "abstrakte Klasse"
        },
        {
          "code": "el",
          "lang": "Greek",
          "roman": "afiriméni klási",
          "sense": "in software - a class which cannot be instantiated",
          "tags": [
            "feminine"
          ],
          "word": "αφηρημένη κλάση"
        },
        {
          "code": "is",
          "lang": "Icelandic",
          "sense": "in software - a class which cannot be instantiated",
          "tags": [
            "masculine"
          ],
          "word": "hugrænn klasi"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "in software - a class which cannot be instantiated",
          "word": "soyut sınıf"
        }
      ],
      "wikipedia": [
        "abstract class"
      ]
    }
  ],
  "word": "abstract class"
}

{
  "antonyms": [
    {
      "word": "concrete class"
    }
  ],
  "forms": [
    {
      "form": "abstract classes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "abstract class (plural abstract classes)",
      "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:Object-oriented programming"
      ],
      "glosses": [
        "A class that cannot be instantiated and may have abstract method."
      ],
      "links": [
        [
          "object-oriented programming",
          "object-oriented programming"
        ],
        [
          "class",
          "class"
        ],
        [
          "instantiated",
          "instantiate"
        ],
        [
          "abstract method",
          "abstract method"
        ]
      ],
      "qualifier": "object-oriented programming",
      "raw_glosses": [
        "(object-oriented programming) A class that cannot be instantiated and may have abstract method."
      ],
      "wikipedia": [
        "abstract class"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "in software - a class which cannot be instantiated",
      "word": "abstrakti luokka"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "in software - a class which cannot be instantiated",
      "tags": [
        "feminine"
      ],
      "word": "classe abstraite"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "in software - a class which cannot be instantiated",
      "tags": [
        "feminine"
      ],
      "word": "abstrakte Klasse"
    },
    {
      "code": "el",
      "lang": "Greek",
      "roman": "afiriméni klási",
      "sense": "in software - a class which cannot be instantiated",
      "tags": [
        "feminine"
      ],
      "word": "αφηρημένη κλάση"
    },
    {
      "code": "is",
      "lang": "Icelandic",
      "sense": "in software - a class which cannot be instantiated",
      "tags": [
        "masculine"
      ],
      "word": "hugrænn klasi"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "in software - a class which cannot be instantiated",
      "word": "soyut sınıf"
    }
  ],
  "word": "abstract class"
}