Regardless of their name (dictionary, glossary, encyclopaedia, or even ‘leximat’, in the case of a new generation of online, semi-automated lexicographic tools), subject-field, purpose, or medium (paper or cyber), lexicographic reference works should be regarded as functional information tools that are solely designed to cater to the information needs of their users in different usage situations and that consequently help them solve specific communication (reading, writing, translation) or knowledge problems (acquiring new knowledge or verifying existing knowledge, learning a language or a subject field). In this article, we briefly outline the evolution of lexicographic reference works from stand-alone to multifunctional lexicographic tools, and we describe the theoretical principles and innovative functionalities of a new task and problem-oriented lexical database, the Base Lexicale du Français. In line with Tarp (2006), a tool that should be truly regarded as a ‘leximat’.