C# Delegate Related Important Terms

Delegate	Action
Delegate Type	Action<T>
Delegate Instance	Func<TResult>
Delegate Object	Func<T, TResult>
Delegate Invocation	Predicate<T>
Delegate Invocation List	Delegate Chaining
Multicast Delegate	Delegate Combination
Single-cast Delegate	Delegate Removal
Callback	Delegate Covariance
Anonymous Method	Delegate Contravariance
Lambda Expression	Delegate Compatibility
Method Group	Delegate Binding
Delegate Signature	Delegate Invocation Operator (())
Target Method	Delegate.Combine()
Target Object	Delegate.Remove()
Open Delegate	Delegate.GetInvocationList()
Closed Delegate	Higher-Order Function
Generic Delegate	First-Class Function
Built-in Delegate	Function Pointer
	Expression Tree (Expression<TDelegate>)