Within the framework of studies using the ladl system of electronic dictionaries, the group Applied Linguistics in Romance Languages of the uab has undertaken the construction of an electronic dictionary for frozen compound adverbs. This dictionary completes the delacss (Dictionary for Compound Words of Spanish). This paper briefly presents the characteristics of each type of frozen compound adverb and also the choices that underlie the development of the tables in which they are recorded. Details are also given about the state of electronic dictionary of frozen compound adverbs currently available on intex. Since this is a preliminary study, the final section is devoted to identifying possible future developments, rather than drawing conclusions. © 1999 John Benjamins B.V., Amsterdam.