Question

I was recently re-reading some old posts on Eric Lippert’s ridiculously awesome blog and came across this tidbit:

A considerable fraction of the keywords of C# are used in two or more
ways: fixed, into, partial, out, in, new, delegate, where, using,
class, struct, true, false, base, this, event, return and void all
have at least two different meanings.

Just for fun my coworkers and I quizzed ourselves and I was able to come up with at least two uses for all but one of those keywords. The one that stumped me is event.

Obviously, using event when declaring a member field of a delegate type turns it into an event (e.g. only add/remove operators are exposed). What’s the other meaning of event?

EDIT (Answer):

Thanks to @Hans Passant I dug up this bit out of the C# spec that explains the other use of event — as (the default) attribute target specifier for attributes on an event (from section 17.2):

An attribute specified on an event declaration that omits event
accessors can apply to the event being declared, to the associated
field (if the event is not abstract), or to the associated add and
remove methods. In the absence of an attribute-target-specifier, the
attribute applies to the event. The presence of the event
attribute-target-specifier indicates that the attribute applies to the
event; the presence of the field attribute-target-specifier indicates
that the attribute applies to the field; and the presence of the
method attribute-target-specifier indicates that the attribute applies
to the methods.

Answer 1

As the attribute target specifier. I can’t think of a good reason you would do this:

[AttributeUsage(AttributeTargets.Event)]
class MyAttribute : Attribute { }

class foo {
    [event: MyAttribute]
    public event EventHandler goo;
}