What is difference between Delegates and function?

Question

Hi Geeks

I'd like to know that ,what is the difference between delegates and function,So far i have seen that both works in similar manner.

I merely found the difference is delegates are type safe.None else.

I'd like to know that in what situation we should go for delegates.

If some one can tell me real faces of delegates,I'll be highly grateful.

Thanks

Sachin Kalia