I'm Venezuelan, so my native language is Spanish. But I have my MacMini and my MacBook in English because that's the way I like to work, it's better for my (and my job). Usually, when I access Dictionary app (mostly with Alfred), I can just look out the definitions, synonyms and whatnot in English, but not in Spanish.
The only way I know how to switch the language is changing the global language settings (via System Preferences > Language and Text). This means that the whole OS would be in Spanish. I would like to be able to use both languages in Dictionary.app, at the same time, so I can look out definitions, synonyms, and else in both languages (specially through Alfred).
Any way I can achieve that?