Dacco Regex Dictionary
The DACCO Regex Dictionary allows you to search DACCO's English-Catalan and Catalan-English dictionaries for words based on how they are spelled and, optionally, by part of speech. (For example, you can look for all adjectives ending in "-ly".) It is based on Lou Hevly's Regex Dictionary, where you will find a complete explanation of its use in the step-by-step tutorial.
Catalan verb conjugator