I have been developing a computer program named RebLin. RebLin has special functions other than searching electronic dictionaries. In this paper, I will show how multi-functional RebLin expands the possibility of electronic dictionaries. First, I will compare RebLin with other computer programs which handle electronic dictionaries, analyzing how each of the software deal with inflected forms and derivatives. Then, I will explain how RebLin retrieves useful information out of other electronic resources such as those on the internet, digitized movies and a lexical database. Finally, I will analyze a log file which records words which users input in the search field of RebLin, and show how they make use of the various electronic resources which RebLin provides them with.