The Nietzsche Dictionary elucidates in detail some 300 terms from Nietzsche's vocabulary. The first volume presents 67 of them. The account of each term includes the number of occurrences, main uses, synonyms, the various meanings, components of meanings and semantically relevant contexts (with examples), and the historical linguistic and philosophical localisation of Nietzsche's use of the word, as well as a discussion of Nietzsche research and the reception of Nietzsche. The complete dictionary will comprise 4 volumes. New articles will be pre-published in the database Nietzsche Online.