How to stop macbook spotlight from showing internet website and dictionary? I just want to search files in my computer. If I want to search things in internet I will go to browser.
Uncheck "Spotlight Suggestions" under System Preferences > Spotlight 

Farther up, there is also a "Bookmarks &amp; History" that could be relevant.  

(oh, and you might want to uncheck the "Allow Spotlight Suggestions in Look up" there below)