How do i enable spanish in the safari dictionary?

Question

I understand from the last sentence on description of the safari dictionary on the Apple website, Spanish should be supported.  But no definitions for Spanish words come up.  How do I enable Spanish?  Is it possible to obtain translations to English as well as definitions in Spanish?
http://www.apple.com/osx/apps/all.html#dictionary
Dictionary
Words at your fingertips.
Find definitions and synonyms using the New Oxford American Dictionary and Oxford American Writer’s Thesaurus, which include over 250,000 words, in Dictionary. You can look up words directly from a variety of applications, including Safari and Mail. When you’re connected to the Internet, you can look up terms in Wikipedia directly from the Dictionary application. That means access to millions of articles written by thousands of people all over the world. Dictionary even includes a list of Apple terms and definitions — such as “Finder” and “AirPort” — that help you get to know your Mac better. And Dictionary includes support for British English, Japanese, Japanese translation, Japanese synonyms, Simplified Chinese, Spanish, and German.

Answer 1

To enable dictionaries, you go to dictionary.app > preferences and check the box you need.
Apple doesn't supply a translation dictionary for Spanish, but you might be able to add it if you can find one somewhere:
http://m10lmac.blogspot.com/2013/01/adding-dictionaries-to-dictionaryapp.html