subclass /ˈsʌbklæs/noun 3verb 2forms 3 noun3 •A secondary class within a main class.Goffin is a prose text interspersed with short lists of typical terms exemplifying certain sub-classes of Indian English lexis. — 2014 •A rank directly below class. •An object class derived from another class (its superclass) from which it inherits a base set of properties and methods. verb2 •(in object-oriented programming) To create a subclass of (some class).I subclassed the Button class to create a more specialised FancyButton class for my user interface. •To cause (an object) to act as an instance of a subclass (by creating the desired subclass and instantiating an object of this subclass). formssubclassed · subclassing · subclasses