Since Mac OS X Leopard, I have become hooked on using Spotlight to look up word definitions and find related words using the thesarus. However, with Snow Leopard, the default behavior of the Dictionary App is to open up a new window for each word query. Some people love this functionality but it doesn’t fit my workflow. Thankfully, a friend turned me on to this Apple default that you can use to make Apple Dictionary use a single window whenever you open it.
For the fix, simply open Terminal (in Applications/Utilities), and enter the following command:
defaults write com.apple.Dictionary ProhibitNewWindowForRequest -bool TRUE
Enjoy!
