Why is GoF called "GoF"?

[fourgom at ameritech.net]

No: HPFGUIDX 29847

This is something that I wondered about right after I finished Goblet 
of Fire.

Why is the book called "Harry Potter and the Goblet of Fire?" The 
Goblet of Fire appears in all of ONE chapter, and the role it plays 
isn't that big, in the scheme of the book.

Is there a hidden meaning I overlooked? Some foreshadowing to one of 
the later books? Any suggestions or ideas would be most welcome.