The use of invite instead of invitation has always grated on my ears. When I hear it used on TV, in the cinema or in conversation, I hear myself shouting, "INVITATION" like a grammatical Tourette's sufferer. Although dictionaries tend to point out that the use is colloquial it seems to be so widespread now that it may be given noun status in its own right. How widespread does this type of usage/abusage have to be before it becomes 'acceptable'? I don't think I shall ever be able to accept it. Am I just an old fuddy duddy?