I bought this little electronic Larousse for this fabulous function question mark on the missing letters. It completely fulfills its role; by cons if you actually have little vocabulary, or if you ask for definitions of words which he lacks (see the list of functions) forcing you will not get your ends with this tool "basic". In any case, this Franklin - Larousse perfect complement to your dictionaries, for a small price! I count even buy a second later to offer!