EntityQ100023· pop 13· linked from 28 articlesmetasyntactic variableSign in to saveplaceholder term used in computer scienceConnectionsemailEntityprogramming languageEntityInternet Engineering Task ForceEntityColossal Cave AdventureEntitynumberEntitycomputer scienceEntityalgebraEntityMicrosoftEntityInternational Standard Book NumberEntityQ15777EntityPythonEntityCommonwealth of NationsEntityQ2407Entitycomputer programmingEntitydatabaseEntityegg as foodEntitylingua francaEntityQ47607Entitydigital object identifierEntityHTTPEntityCategoriesMetalogicPlaceholdersSyntax (logic)Variable (computer science)