haha thats quite funny!
try this untick the Apple dictionary in Dictionary's preferences and quit it. then try...
it doesnt really bother me but as the Dictionary isnt the top result. its quite useful for real definitions though.
Where did I go wrong? :'(
I did notice that if I uncheck the Apple dictionary in Dictionary's preferences iPhoto doesn't show up... but when I uncheck everything in Dictionary.app I can still get dictionary results in spotlight.