What is the difference between access modifiers & specifier?

In the C# Specification (the official description of the C# language) public, internal, protected, protected internal and private are referred to as 'access modifiers'.

Other keywords such as static, readonly, const and new are described simply as 'modifiers'.

AFAICS, the term 'specifier' is not used at all in the specification itself but you sometimes see it used in documentation etc. as another word for 'modifier'. So, in the context of C#, modifier and specifier mean the same thing though the former should be preferred.

'void' is technically a type (an alias for System.Void), see:

http://msdn.microsoft.com/en-us/library/system.void(v=vs.110).aspx

However, curiously, if you try to use System.Void in a C# application you get a compile time error.

Thanks, Wish you the same Suma.

Access specifier specifies where a variable can be accessed from. For example public, private are specifiers because it says that a class can be accessed only within the class [incase of private] or outsite the class.

Access modifier specifies how variables should [not] be accessed. For example readonly, volatile are modifiers because it says that the variable can not be modified [incase od readonly].

[Updated]

Static is access modifier & void is a type.