macfidelity

That’s really helpful for non-native speakers like me

Links:

• Common Errors in English

I have found a German - english dictionary plugin for Mac OS X5.

You can read more about the plugin here.

Quote from the project:

This package enhances Mac OS X Leopardâ ‚¬ „¢s (10.5) Dictionary.App by providing the complete german-english vocabulary from the fabulous dict.cc dictionary for offline use.
It works great in Dictionary.App and other core OS X services like Spotlight or Dictionary-Widget.

Well the bad news at the end:

This is limited to 10.5, as dictionary in 10.4 does not supports plugins.