$0.99
The iPhone supports some excellent local dictionaries.

But even the best can't include all of the results that are available online.

Dictio gets you to the online reference results you want with less tapping.
 
Less Tapping
Safari on your iPhone gives you anywhere access to the world's best online reference sites.

But searching for the same term on several sites quickly becomes tedious.

Dictio eliminates the repetitive text-input.

Enter your search term once, then use Dictio's tabs to submit that search to any of several online reference sites.

Faster Answers
Watch the short (15s) video below for a demonstration of a common case where Dictio shines: a dictionary search with no results.

Searching another site is as simple as tapping the appropriate tab.
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Need offline dictionary access?

Here are some great offline dictionary apps:
Customer Reviews
"I was constantly looking things up using my Oxford dictionary (I am reading historical fiction & find myself not knowing many of the words). I also am always striving to learn more about just stuff. I now have the best of both worlds, dictionary & Wikipedia in one app. Great job!"
- Darcilyn82
"This app is awesome and saves a ton of time! ... I've purchased several Dictionary apps and this is the one I always use!"
- baby_nurse