🌐EnglishEnglishDeutschFrançaisItalianoNederlandsTürkçeРусский日本語EntityQ122375923· pop 10abstract classAlso known as abstract base class, ABCa class that cannot be directly instantiatedAvailable in 9 languagesFrançaisDeutschРусскийItalianoBosnianNederlandsTürkçeUkrainianvia Wikidata sitelinks · CC0ConnectionsclassEntity