abstract class
abstract factory class
static class
trait
factory class
abstract method
factory method pattern
concrete class
final method
instantiate
singleton pattern
pseudoclass
constructor
first-class citizen
first-class value
first-class entity
mixin
circle-ellipse problem
singleton
object
programmability
coclass
extend
unclassable
template method
abstractional
third-class entity
subclass
third-class citizen
final class
third-class value
non-virtual interface pattern
second-class entity
embodiment
second-class citizen
specimen
second-class value
abstract
unrepresentative
composite reuse principle
non-virtual interface
template
type erasure
object-oriented programming
metaclass
inheritor
class-based programming
private
Sather
unabstract
abstractionistically
autoclassifier
reification
red bourgeoisie
base class
abstract type
generic class
nondegenerate
abstractionistic
type system
bankruptcy
abstractable
factory
Java
class invariant
abstractly
shadow DOM
exception
software framework
abstractify
realm
object-based language
nonabstract
override
abstractize
objectivation
proper class
member function
facade pattern
wrapper
marker interface
classifier
instantiation
nonimplement
objectification
methodologic
has-a
OOP
formal parameter
third-class object
abstract factory pattern
generic programming
Rice's theorem
prototype-oriented programming