The Dornseiff maps the entire German vocabulary not alphabetically but by subject groups. Thus, each entry presents a wealth of words of all parts of speech belonging to the respective subject or term, offering information, documentation, and inspiration all in one. With its unique structuring principle, the Dornseiff is an indispensable tool for all writers who are looking for meaning-related words (synonyms) in order to formulate texts more precisely and with more variety. Beyond stylistic practice, the Dornseiff enables differentiated vocabulary analyses. The 9th edition of this traditional standard work contains about 20% more entries and has been expanded to include new subject areas. The entire vocabulary illustrated has been thoroughly revised with the help of the word corpus of the German Vocabulary Project (University of Leipzig).