MyVocabtionary allows you to create an online dictionary for free!
MyVocabtionary (formerly phpVocabtionary) is a free PHP/MySQL-based web software that allows you to create a free dictionary. With our vast number of modifications, you can also make your dictionary even better! Download is completely free. Usage is a piece of cake and you can customise almost everything through a user-friendly GUI. Creating an online dictionary has never been that easy!
Poga is software for processing of formal languages, especially for processing automata and grammars. It has modular architecture, it is programmed in C++ and it doesn't have a GUI (it has CLI).